Question

the ratio of speed of p,q,and r is 2:3:5 if all the three covers equal distance then the ratio of time taken by p,q and r respectively
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Answer 1

Answer:

15:10:6

Step-by-step explanation:

speed = distance / time

speed ratio.... p:q:r = 2:3:5

distance is same

Let, time for p be t1, q be t2, and r be t3

then,

1/t1 : 1/t2 : 1/t3 = 2:3:5

now consider first two ratio, i.e, 1/t1 : 1/t2 = 2:3

and 1/t1 : 1/t3 = 2:5

then we have t2 = 2/3 t1 and t3 = 2/5 t1

therefore, t1:t2:t3 = t1: 2/3 t1 : 2/5 t1

= 1:2/3:2/5 = 15:10:6