CBSE > Class 10 > Mathematics | CBSE Board | Homework Help

R=10 cm R=500cm h=200cm volume of water flows in 1 hr =pie×10×10×300000(cmcube) volume of cylindrical tank =pie×500×500×200 time taken to be fill the tank=volume of cylindrical tank÷volume of water flow in 1 hr =(pie×500×500×200)÷pie×10×10×300000 =(5÷3)hr =(5÷3)×60 =100min Thank you??

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Chirag Mantri 6 years, 10 months ago

200min. I Guess ?

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what are consecutive numbers

Posted by Mohit Soni 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Hema Pandey 6 years, 10 months ago

The numbers which are continuos such as 15,16

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Have Fun Happy 6 years, 10 months ago

Who has more than two factors

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Find the coordinates of the points which divide the line segment joining A(-2,2) and B(2,8) into four parts

Posted by Tanya Goyal 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Yogita Ingle 6 years, 10 months ago

From the figure, it can be observed that points X, Y, Z are dividing the line segment in a ratio 1:3, 1:1, 3:1 respectively.
Coordinates of x = {tex}\;\left(\frac{1\times2+3(-2)}{1\;+\;3},\frac{1\times8\;+3\times2}{1+\;3}\right)=\;\left(-1,\;\frac72\right){/tex}
Coordinate of Y = {tex}\;\left(\frac{2 +(-2)}{2},\frac{2 +8}{2}\right)=(0,5){/tex}
Coordinate of Z = {tex}\;\left(\frac{3\times2+1(-2)}{1\;+\;3},\frac{3\times8\;+1\times2}{1+\;3}\right)=\;\left(\;1,\;\frac{13}2\right){/tex}

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Puja Sahoo? 6 years, 10 months ago

Let, the points be P1, P2, P3......so, P1(0,5) , P2(-1, 7/2),..... P3(1, 13/2)........

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ANSWER

Which chapters are important for exam

Posted by Garima Sharma 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Anshika / U Can Call Me Alien ???? 6 years, 10 months ago

Trigonometry triangle circle stastic and construction surface area and volume

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5,(2k-3),9 is an a.p ,find the value of k

Posted by Paras Atri 6 years, 10 months ago

CBSE > Class 10 > Mathematics

5 answers

Kratika Nyati 6 years, 10 months ago

1Thank You

Anshika / U Can Call Me Alien ???? 6 years, 10 months ago

Indirectly mera answer right he

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Yogita Ingle 6 years, 10 months ago

sorry by mistake used 2k - 9 in place of 2k - 3.
So, solve same by same method.

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Yogita Ingle 6 years, 10 months ago

5, (2k -9), 9 is an ap
d = (2k -9) - 5 = 2k-9 - 5 = 2k - 14 .... (i)
also d = 9 - (2k-9) = 9 - 2k - 9 = - 2k ...... (ii)
From (i) and (ii)
2k - 14 = -2k
2k + 2k = 14
4k = 14
k = 14/4 = 7/2

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Anshika / U Can Call Me Alien ???? 6 years, 10 months ago

K=5

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ANSWER

1/x+a+b=1/a +1/b +1/x. Solve for x

Posted by Ayush Garg 6 years, 10 months ago

CBSE > Class 10 > Mathematics

1 answers

Chirag Mantri 6 years, 10 months ago

X= (-a) or (-b)

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A takes 6 days less than the time taken by B to finish a piece of work.if both A and B together can finish it in 4 days ,find the time taken by B to finish the work.

Posted by Richiezz Richu 6 years, 10 months ago

CBSE > Class 10 > Mathematics

2 answers

Anshika / U Can Call Me Alien ???? 6 years, 10 months ago

Secondary SchoolMath 5 points A takes 6 days less than B to do a work. If both A and B working together can do it in 4 days, how many days will B take to finish it? Ask for details Follow Report by AryanVerma 07.04.2017 Answers lohithnaik5 lohithnaik5 Ambitious B alone finish work in x days A alone work in x/x -6 A one day works= 1/(x-6) and B one day works = 1/x A+B one day work = 1/4 so, 1/(x-6) + 1/x =1/4 x+x-6/x(x-6) = 1/4, 2x-6/x(x-6) =1/4 4(2x-6) = x(x-6), 8x-24 = xsq - 6x, x sq -14x +24 = 0 ans : x = 12 or 2 ------------------------------------------------------------------------------------------------------ HOPE IT WILL HELP YOU FRIEND 4.3 29 votes Comments (1) Report AryanVerma Thank you for help. Log in to add a comment bansalmridul20pak7ey Helping Hand Let the time taken by B to complete the work be x days. in these type of questions , we should convert the work done into 1 day. So , According to the question 1/x + 1/x-6 = 1/4 => x-6+x / x(x-6) = 1/4 => 2x-6 / x^2-6x = 1/4 => 8x-24 = x^2-6x => x^2-14x+24 = 0 => (x^2-12x)+(-2x+24) = 0 => (x-12) (x-2) = 0 => x = 12 , 2 if the time taken by B to complete the work is 2 days then the time taken by A to complete the work will be -4 days which is not possible. => time taken by B to complete the work is 12 days . HOPE THIS HELPS YOU .

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Anshika / U Can Call Me Alien ???? 6 years, 10 months ago

I think 5

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Aquaman 200 metre que par hai usse Keh sake Nadi Ke Do Kinare kya aap neman ko 45 degree and 60 degree ke hai Nadi ke choda Ghat Kare

Posted by Sachin Kumar 6 years, 10 months ago

CBSE > Class 10 > Mathematics