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Harsh Mishra 6 years, 6 months ago

Total No. of Shake Hands = 29 + 28 +27 +26 + 24 + 23 + 22 + 21 + 20 ....... + 5 + 4 + 3 + 2 as the last one and the first one already shake hand with everybody at their turns, that's why they aren't counted..... Therefore, It is Equal to 434, You'll read more about it in your Successive Classes... :)

ANSWER

find the nearest integer to the square root of the following numbers

Posted by Monika Dimple 6 years, 6 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

What is the fire number

Posted by Sakthi Vel 6 years, 6 months ago

CBSE > Class 08 > Mathematics

1 answers

How Are You ?Desi? Jaat ?Boy ? ???Piyush Jajra??? 6 years, 6 months ago

101

ANSWER

At what rate of percent compund intrest,₹800 amount to ₹926.10 in 1and half year, intrest being compounded half yearly

Posted by Deepakshi Kabra 6 years, 6 months ago

CBSE > Class 08 > Mathematics

1 answers

Deepakshi Kabra 3 years, 11 months ago

We have Principle =Rs2800 Amount =Rs926.10 Time period 1&21=3half yearly Let ′R′ be the rate of interest Now, A=P(1+100/R)^n ⇒926.10=800(1+100/R)^n ⇒9261/8000=(1+100/R)^3 ⇒(20/21)3=(1+100/R)^3 ⇒20/21=1+100/R[cancle3bothside] ⇒20/21−1=100/R ⇒ 1/20 =100/R ∴R=5% Hence, the required interest rate is 5%.

ANSWER

Rohit bought a second hand car for RS 2,35,000 and spent RS 15,000 on painting.If he sold it for RS 2,85,000,what was the profit percentage ?

Posted by Mabiaki Biakhmingliani 6 years, 6 months ago

CBSE > Class 08 > Mathematics

3 answers

Ashutosh Pathak 6 years, 6 months ago

14%

Deepakshi Kabra 6 years, 6 months ago

Given: CP=₹235000 Overhead expences=₹15000 Total cp=250000 SP=285000 Profit=sp-cp =285000-250000 =₹35000 %profit=profit/cp×100 =35000/250000×100 Answer=14%..... To check:14/100×250000=35000[=profit]

Manju Lata 6 years, 6 months ago

14%

ANSWER

623+532

Posted by Ayushi Gupta 6 years, 6 months ago

CBSE > Class 08 > Mathematics

3 answers

Alok Jha 6 years, 6 months ago

1155

Manju Lata 6 years, 6 months ago

1155

Divyansh Rai 6 years, 6 months ago

1155

ANSWER

What is a perfect cube

Posted by Jagruti Parmar 6 years, 6 months ago

CBSE > Class 08 > Mathematics

3 answers

Alok Jha 6 years, 6 months ago

No. Which is multiply by itself and form a triplet is called perfect cube

Deepakshi Kabra 6 years, 6 months ago

Numbers which are multiplied by itself three time and have a cube root are called perfect cube number.

Satyam Nigam 6 years, 6 months ago

The in which we find perfect cube root

ANSWER

The digit of a two digit number differ by 3 if the digits are interchanged and the results number is added to the original number we obtain 143 find the original number

Posted by Surendar Kumar 6 years, 6 months ago

CBSE > Class 08 > Mathematics

2 answers

Satyam Nigam 6 years, 6 months ago

Let the ten's digit no. be 'x'.so,the one's digit no.=x-3 . Original number=10x+x-3=11x-3 ; No. obtained after interchange the digit=10(x-3)+x=11x-30. ; A.T.Q. ; 11x-3+11x-3=143 ; 22x-33=143 ; 22x=143+33 ; 22x=176 ; x=176/22 ; x=8 . So,the original no.= 11x-3 = 11×8-3=88-3=85.

Chaitanya Kale 6 years, 6 months ago

Original=new number 10x(3+143)=10x(3x+10)+143 30x+143=30x+100x+143 173x=130x+143 173x=273x X=273/173

ANSWER

3√2=√18

Posted by Ms Sayyada 6 years, 6 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

How to find ratio

Posted by Gayatri Dabas 6 years, 6 months ago

CBSE > Class 08 > Mathematics

2 answers

Sia ? 6 years, 6 months ago

To calculate the ratio, the width will be divided by the GCD and the height will be divided by the GCD. A colon will be placed between those two numbers. The result is 4:3 -- the ratio for those screen dimensions.

Ravi Kumar Ravi 6 years, 6 months ago

ANSWER

Solve X=4/5 (x+4/5) ×10

Posted by Tanishka K Nahar 6 years, 6 months ago

CBSE > Class 08 > Mathematics

0 answers

ANSWER

What is meant by prime numbers

Posted by Avinash Nomula 6 years, 6 months ago

CBSE > Class 08 > Mathematics

6 answers

Maruti Sanshi 6 years, 6 months ago

3,5,13,17,19

Devanshe Nigam 6 years, 6 months ago

The no. Which are having mutiple as 1 and itself ex- 2 , 3 , 5, 7,9,11,13,17,19 etc.

Roshan Kumar 6 years, 6 months ago

Those numbers which only can divisible by himself and by 1.ex 1,2,3,5,7,11,13,17,19,29,23, etc

Satyam Nigam 6 years, 6 months ago

?️

Tanishka K Nahar 6 years, 6 months ago

The number which is divided by only 2 numbers and that is 1 and it self a number is called prime numbers example 3 is a number which is divided by it self a number and 1

Satyam Nigam 6 years, 6 months ago

The number which not divide by other number . This no. only divide by him or divide by 1. Example—2,3,5,7,13,17,19 etc.

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Anima left one-half of her property to her daughter,one-third to her son and donated the rest to an educational institute.If the donation was worth Rs. 100000, how much money did Amina have?

Posted by Harsh Raj 6 years, 6 months ago

CBSE > Class 08 > Mathematics

1 answers

Satyam Nigam 6 years, 6 months ago

Let the tolat property be x. So,the momey give to her daughter=x/2 ; money give to his son = 1/3—(x—x/2) = x/6 ; donation = 100000. A.T.Q. x/2 + x/6 + 100000 = x , solve them than you find the answer

ANSWER

A bouquet of flowers Cobain's 10 dozen flowers. How many gladioli are present in the bouquet if 1/6th of the flowers are lilies, 1/8th are roses and 1/5th are jasmine?

Posted by Varsha Nandgaonkar 6 years, 6 months ago

CBSE > Class 08 > Mathematics

1 answers

Satyam Nigam 6 years, 6 months ago

Let x the no. of gladioli . In one dozen there are 12 flowers. So, in 10 dozens=10×12=120flowers ; A.T.Q. ; 1/6+1/8+1/5+x=120

ANSWER

Board paper style

Posted by Shashi Lotta 6 years, 6 months ago

CBSE > Class 08 > Mathematics

2 answers

Devanshe Nigam 6 years, 6 months ago

Crome

Devanshe Nigam 6 years, 6 months ago

You can search on googel , chome

ANSWER

Radhika takes some flowers in a basket and visits three temples one by one.At each temple she offers one half of the flowers from the basket.If she is left with 3 flowers at end,find total numbers of flowers she had in the beginning

Posted by Harsh Raj 6 years, 6 months ago

CBSE > Class 08 > Mathematics

2 answers

Satyam Nigam 6 years, 6 months ago

Soory in 3rd temple = 1/2 × x/4 =x/8 ; A.T.Q. ; x/2+x/4+x/8 = x ; (4x+2x + x + 24)/8=x ; 7x+24=8x ; 8x-7x=24 ; x=24 ; So, the total no.of flowers are 24

Satyam Nigam 6 years, 6 months ago

Let the no. of total flowers be x.So, the no. Flower spend in 1st temple=x/2 and in 2nd temple=1/2(x-x/2) = x/4 than in 3rd= 1/2 × x/4 = x/6 ; A.T.Q. ; x/2+ x/4+x/6+3=x