Question

A is inversely proportional to B. when A=5,B=10,calculate the value of B when A=25

Answer 1

Gud Morning!!!

A = k / B

Where k is called constant of proportionality.

When A = 5 and B = 10

We get

k = 10 × 5 = 50.


But When A = 25

25 = k / B

k = 25 × B

B = k / 25

B = 50 / 25

B = 2


Have a nice day..

Answer 2

The value of B is 2.

Given: A is inversely proportional to B and A=5, B=10.

To find: We have to find the value of B when A=25.

Solution:

Given that A is sincerely proportional to B.

Thus we can write-

A=k/B.

Where k is the proportionality constant.

Now we have to find the value of k.

Putting A=5 and B=10 the value of k will be-

5=k/10

k=50

Thus the value of k is 50.

Now given that the value of A is 25.

So, the value of B will be-

25=k/B

25=50/B

B=2

The value of B is 2.