Question

If t varies 1/s and t=2 when s=60 find the relationship between t and s, b, find the value of t when s=90 c, find s when t=2,1/2

Answer 1

`t = k (1)/(s) \\ 2 = k. (1)/(60) \\ k = 120 \\ k \: \: is \: constant \: of \: variation \\ relationship \: is \\ t = (120)/(s) . \\ when \: s \: = 90 \\ t = (120)/(90) \\ t = (4)/(3) \\ when \: t = 2 (1)/(2) \\ s = (120)/(2 (1)/(2) ) \\ s = 48`