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who is alexnder the great?

 

Posted by Sai Koushik (Mar 27, 2017 9:51 p.m.) (Question ID: 4554)

  • Answers:
  • Aap Ke papa 

    Answered by Abhinav Mehra (Mar 27, 2017 10:07 p.m.)
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I spent 5% of my total income in charity, 22% in buisness and 53% in family. Now i Had Rs. 2163 and forty paisa.  Find my total income

Posted by Senthil Nathan (Mar 23, 2017 7:31 p.m.) (Question ID: 4455)

  • Answers:
  • Total expenditure = 5% + 22% + 53% = 80%

    Money left = 100% - 80% = 20%

    Let total income be Rs. x.

    According to question,

    20% of x = 2163.40

    20/100 × x = 2163.40

    x = 2163.40 × 100 ÷ 20

    x = Rs. 10817

    Therefore total income is Rs. 10817.

    Answered by Rashmi Bajpayee (Mar 24, 2017 4:49 p.m.)
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A person has deposited amount at 12% rate find out years to make principle double.

Posted by Rathi Kajal (Mar 21, 2017 9:06 a.m.) (Question ID: 4305)

  • Answers:
  • Let amount deposited be P. Then amount after required years will be 2P.

    Now, S.I. = P x R x T / 100

    S.I. = P x 12 x T / 100 = 2PT/25

    Amount = P + S.I

    2P = P + (2PT/25)

    P = 2PT/25

    2T = 25

    T = 12.5

    Therefore the time required for principal double is 12.5 years.

    Answered by Rashmi Bajpayee (Mar 21, 2017 1:41 p.m.)
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At what rate ,  Rs 9900 amount to 13365 in 5 years

Posted by Rathi Kajal (Mar 20, 2017 11:23 p.m.) (Question ID: 4293)

  • Answers:
  • SI = (P X R X T )/100

    P = Rs. 9900

    A= Rs. 13,365

    SI = A-P = Rs.3465

    T = 5years

    3465 X 100 = 9900 X R X 5

    R = 7%

    Answered by Shweta Gulati (Mar 21, 2017 1:12 a.m.)
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A cylindrical roller has perimeter 3.5 m and dimeter 2.8 m if roller rolled 200 times , find area of playground

 

Posted by Rathi Kajal (Mar 20, 2017 11:21 p.m.) (Question ID: 4292)

The cube of metal 3,4,5cm are melted and made in to single cube. Find the side of cube.

Posted by Rathi Kajal (Mar 20, 2017 11:19 p.m.) (Question ID: 4291)

  • Answers:
  • Volume of single cube = 33+43+53

    a3 = 27+64+125

    a3= 216

    a3= 63

    a=6cm

    Answered by Shweta Gulati (Mar 21, 2017 1:15 a.m.)
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A person throw bucjet if water of square shape if total water is 8 litre  . Find out side of bucket.

Posted by Rathi Kajal (Mar 20, 2017 11:18 p.m.) (Question ID: 4290)

  • Answers:
  • Ans. Volume of water = 8 L = 0.008m3

     

    Let Side of bucket = x m

    Volume of bucket = Volume of water

    => x3 = 0.008

    => x3 = (0.2)3

    => x = 0.2 m  = 20 cm 

    Side of bucket is 20 cm

     

    Answered by Naveen Sharma (Mar 21, 2017 7:38 a.m.)
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There are chikens with color 50 yellow 50 black and 50 red. Find inique probability of all colors.

Posted by Rathi Kajal (Mar 20, 2017 11:17 p.m.) (Question ID: 4289)

At what rate % per annum will rs 50000 to rs 86400 in 3 years if interest compounded annually

Posted by Rathi Kajal (Mar 20, 2017 11:15 p.m.) (Question ID: 4288)

  • Answers:
  • Ans. Amount (A)= 86400

    Time(n) = 3 years

    Principal (P)= 50000

    Let rate (r) = r%

    Then We Know,

    {tex}A = P \times ({1 +{r\over 100}})^n{/tex}

    {tex}=> 86400 = 50000\times ({1+{r\over 100}})^3{/tex}

    {tex}=> {86400\over 50000} = ({1+{r\over 100}})^3{/tex}

    {tex}=> {216\over 125} = ({1+{r\over 100}})^3{/tex}

    {tex}=> ({6\over 5})^3= ({1+{r\over 100}})^3{/tex}

    On comparing, We get

    {tex}=> ({6\over 5})= ({1+{r\over 100}}){/tex}

    {tex}=> {6\over 5} - 1= {r\over 100}{/tex}

    {tex}=> {1\over 5} = {r\over 100} => r = 20\%{/tex}

    Answered by Naveen Sharma (Mar 21, 2017 7:31 a.m.)
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Find compound interest on rs 25000 for 1 and half year at 20% rate compounded half yearly.

Posted by Rathi Kajal (Mar 20, 2017 11:13 p.m.) (Question ID: 4287)

Find out the probability of getting of king from red cards , club cards and face cards in well shuffled deck of cards.

Posted by Rathi Kajal (Mar 20, 2017 11:12 p.m.) (Question ID: 4286)

  • Answers:
  • Ans. Total cards = 52

    Total red kings = 2

    P(red king) = 2/52 = 1/26

    Total Club cards = 13 

    P(club card) = 13/52 = 1/4

    Total Face Card = 12

    P(Face card) = 12/52 = 3/13

    Answered by Naveen Sharma (Mar 21, 2017 7:20 a.m.)
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In obroi hotel there is enough provision for 90 customers for 20 days , if 30 more customer checked in after 4 days . Find out how many days same provision last.

Posted by Rathi Kajal (Mar 20, 2017 11:06 p.m.) (Question ID: 4284)

  • Answers:
  • Ans. No. of Customers = 90

    Food available for days = 20

    After 4 days,

    No of customers = 90 + 30 = 120

    90 Customers ll use food = 16 days

    1 customer ll use food = 16*90 = 1440

    120 Customers ll use food = 1440/120 = 12 days

    Answered by Naveen Sharma (Mar 21, 2017 8 a.m.)
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The strangth of class decreased every year at 10%. If strangth of class was 70000    2 year ago . Find present strangth.

Posted by Rathi Kajal (Mar 20, 2017 11:03 p.m.) (Question ID: 4281)

  • Answers:
  •  Ans. Strength of class 2 years ago = 70000

    Decreasing rate = 10%

    Strength after 1 year = {tex}70000 - {70000\times 10\over 100} = 70000-7000{/tex}

    => 63000

    Present Strength = {tex}63000 - {63000\times 10\over 100} = 63000-6300{/tex}

    =56700

    Answered by Naveen Sharma (Mar 21, 2017 7:15 a.m.)
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The strangth of class decreased every year at 10%. If strangth of class was 70000    2 year ago . Find present strangth.

Posted by Rathi Kajal (Mar 20, 2017 11:02 p.m.) (Question ID: 4279)

  • Answers:
  • Ans. Strength of class 2 years ago = 70000

    Decreasing rate = 10%

    Strength after 1 year = {tex}70000 - {70000\times 10\over 100} = 70000-7000{/tex}

    = 63000

    Present Strength = {tex}63000-{63000\times 10\over 100} = 63000-6300{/tex}

    =56700

    Answered by Naveen Sharma (Mar 21, 2017 7:09 a.m.)
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There has number 1 to 8 find,

1   probabolity of 7

2   even no

3    multiple of 3

4    factor of 28

Posted by Rathi Kajal (Mar 20, 2017 10:57 p.m.) (Question ID: 4277)

  • Answers:
  • Ans. Total number = 8

    (1) No of favourable case for 7 = 1

    P(7) = 1/8

    (2) total even numbers = 4

    P(even No) = 4/8 = 1/2

    (3) Total multiple of 3 = 2

    P(Multiple of 3) = 2/8 = 1/4

    (4) Factors of 28 = 2

    P(Factor of 28) = 2/8 = 1/4

    Answered by Naveen Sharma (Mar 21, 2017 7:05 a.m.)
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Meena drink 3 tins of softdrinks , each tin has base radius 7cm and height 14cm . He threw all tin on ground.

1   Find total softdrinks in cubic cm.

2   advice to be given that the compaign run by govt.

Posted by Rathi Kajal (Mar 20, 2017 10:53 p.m.) (Question ID: 4276)

  • Answers:
  • Ans. Radius of tin = 7cm

    Height of tin = 14cm

    Volume of tin = {tex}=> \pi r^2h=> {22\over 7}\times 49\times 14 = 2156cm^3{/tex}

    (1) As she drinks 3 tin,

    Then total volume = 3*2156 = 6468 cm3

    Answered by Naveen Sharma (Mar 21, 2017 7:02 a.m.)
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A painter got certain amount and donate 1/4th of it to pm welfare fund. If the dimension of the area is 12×10×10 and rate 10rs/m sq

1.   Find total money

2.   Find denoted money

3.   Value promoted

Posted by Rathi Kajal (Mar 20, 2017 10:49 p.m.) (Question ID: 4275)

A train running a uniform 120km/hr. Find distance covered by train.

Posted by Rathi Kajal (Mar 20, 2017 10:46 p.m.) (Question ID: 4273)

A painter got certain amount and donates 1/4 th of it to welfare fund . If the dimension of area is 10×12×10m and rate 10rs/m sq.  Find out total money and denoted money value showned.

Posted by Rathi Kajal (Mar 20, 2017 10:45 p.m.) (Question ID: 4272)

A person has deposited amount at 12%rate . Find out years to make principle double.

Posted by Rathi Kajal (Mar 20, 2017 10:42 p.m.) (Question ID: 4271)

  • Answers:
  • Ans. Let Principal = 100 Rs.

    Rate  = 12%

    Amount = 200 ( as per question)

    Interest = 200 - 100 = 100

    Time required = {tex}Interest \times 100 \over Rate \times Principal{/tex}

    {tex}=>{ 100\times 100 \over 12\times 100} = {25\over 3} = 8{1\over 3}Years{/tex}

    = 8 Years 4 Months

     

    Answered by Naveen Sharma (Mar 21, 2017 8:26 a.m.)
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What is oscillation

 

Posted by Vibhash Kumar (Mar 20, 2017 5:10 p.m.) (Question ID: 4217)

  • Answers:
  • Movement of body in its fix axis by the moving object to and frocalled oscillation.

    Answered by Shalini Jha (Mar 20, 2017 7:54 p.m.)
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  • To and fro movement of a body around fixed axis is called oscillation.

    Answered by RAJENDRA SINGH (Mar 20, 2017 5:45 p.m.)
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A bag has something inside yellow red and black color. If 4y 3r 4b. Find probability of y r and not black.

Posted by Rathi Kajal (Mar 20, 2017 3:22 p.m.) (Question ID: 4200)

  • Answers:
  • Probabilty of yellow = 4/11

    probability of red = 3/11

    probability of not black = 7/11.

    Answered by RAJENDRA SINGH (Mar 20, 2017 4:30 p.m.)
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A boy constructed a big wall with dimensions 8m , 6m ,22.5m. Find out no of bricks required if brick has dimension 25cm , 11.25cm ,6 cm.

Posted by Rathi Kajal (Mar 20, 2017 9:39 a.m.) (Question ID: 4181)

  • Answers:
  • Ans. Volume of Wall = {tex}8\times 6\times 22.5 = 1080 m^3 {/tex}

    => {tex} 1080 \times 10^6 cm^3 {/tex}

    Volume of Brick = {tex}25\times 11.25 \times 6 =1687.5 cm^3{/tex}

     

    Number of bricks = {tex}Volume \space of \space Wall \over Volume \space of \space Brick{/tex}

    => {tex} {1080\times 10^6 \over 1687.5} = 64\times 10^4 {/tex}

     

    Answered by Naveen Sharma (Mar 20, 2017 11:03 a.m.)
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To celebrate holi a society has ordered water from municipility . The shape of the tank is rectangle with dimensions 12m ×16m×20m . Find out total water supplied in litre.

Posted by Rathi Kajal (Mar 20, 2017 9:25 a.m.) (Question ID: 4178)

  • Answers:
  • Ans. Dimensions of tank = 12m ×16m×20m

    Volume of tank = 12m ×16m×20m= 3840m3

    Water Supplied = Volume of Tank = 3840m3 = 3840000 L

    Answered by Naveen Sharma (Mar 20, 2017 11:11 a.m.)
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A cylindrical shape tank whose base diameter 28m and height 14m find the capacity of water tank in litre.

Posted by Rathi Kajal (Mar 20, 2017 9:06 a.m.) (Question ID: 4175)

  • Answers:
  • Ans. Diameter of  base of tank = 28m

    Radius of base of tank = 28/2 = 14m

    Height of tank = 14m

    Volume of tank = {tex}\pi r^2h{/tex}

    => {tex}{22\over 7} \times 196\times 14 = 8624m^3{/tex}

    We Know

    1m = 1000L

    So

    Volume of tank in L =8624000L

    Answered by Naveen Sharma (Mar 20, 2017 11:21 a.m.)
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A train is covers 300 km in 180 minutes . Find the timing to cover 350 km.

Posted by Rathi Kajal (Mar 20, 2017 8:49 a.m.) (Question ID: 4174)

  • Answers:
  • distance(km)                    time(minutes)

    300                                   180

    350                                     ?

    =  350x180 divided by 300

    =  63000 divided by 300

    =  210 minutes

    Answered by urvi bhatt (Mar 20, 2017 1:20 p.m.)
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A train is moving uniform rate of 70km/hr. Find distance covered in 12 minutes and find the timing to cover 210km.

Posted by Rathi Kajal (Mar 20, 2017 8:49 a.m.) (Question ID: 4173)

  • Answers:
  • Ans Speed of Train = 70Km/h

    (i) Time = 12 minutes = {tex}{12\over 60} = {1\over 5}hour{/tex}

    Distance = {tex}Speed \times time = 70\times {1\over 5} = 14Km{/tex}

    It ll cover 14 Km in 12 minutes.

    (ii) Distance = 210 Km

    Time = {tex} {Distance \over Speed} = {210\over 70}= 3hour{/tex}

    It ll take 3 hours to cover 210Km

    Answered by Naveen Sharma (Mar 20, 2017 3:15 p.m.)
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The strangth of class decreased every year at 10%. If strangth of class was 70000    2 year ago . Find present strangth.

 

Posted by Rathi Kajal (Mar 20, 2017 8:40 a.m.) (Question ID: 4172)

In a ceremony lemon juice is distributed to 50 guests . If radius of glass is 14 cm and height is 7cm then find out the total lemon juice required in cubic cm.

Posted by Rathi Kajal (Mar 20, 2017 8:36 a.m.) (Question ID: 4171)

  • Answers:
  • Ans. No of Guest = 50

    Radius of Glass = 14cm

    Height of Glass = 7 cm

    Volume of Glass = 

    {tex}{22\over 7}\times 196\times 7 = 4312cm^3{/tex}

    Total Volume of Juice = {tex}No\space of \space Guest \times Volume \space of\space Glass{/tex}

    => 50*4312 = 215600 cm3

    Answered by Naveen Sharma (Mar 20, 2017 3:20 p.m.)
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A rectangular sheet of paper of length 33 cm and breadth 22cm is folded in 2 ways to form a cylinder. Find the difference in the volumes of cylinder formed.

Posted by Rathi Kajal (Mar 20, 2017 8:29 a.m.) (Question ID: 4169)

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