Question

S varies directly as R varies and T varies inversely as R varies. At a time R = 20, S = 40 and T = 10. If R is changed to 10, then the value of T will be

Answer 1

T=n/R

so,

Putting R=20 and T=10, we get.

n=200.

If R=10

Then

T=200/10=20.