Question

y varies jointly with p and q. When p = 3 and q = 5, y = 60. Find y when p = 2 and q = 6
y = 36

y = 48

y = 60

y = 72

Answer 1

Here y varies with p and q (directly):

\[\large y = k \times p \times q\]

p = 3 q = 5, y = 60..

Firstly find k from it and tell me what do you get as k ??

Answer 2

4

Answer 3

Correct..

Now you have k = 4 p = 2 and q = 6 now find y..

Answer 4

so y=48 right?

Answer 5

Well Done...