Question

16) If the speed of Anil and Barun are 40 m/s and 40 kr/hr
respectively, then the ratio of time taken to cover a certain
distance by them is
A) 1:1
B) 5:18
C) 1:2
D) 18:5
​

Answer 1

Answer:

(B)5:18

Step-by-step explanation:

Given,

if the speed of anil and barun are, 40m/sec and 40km/hr respectively.

Anil = 40 m/sec

convert to km/hr

40*(10/5)=144 km/hr

barun=40 km/hr

then the ratio of time taken to cover a certain distance​

let distance is 'd' for both cases

t1 and t2 is time taken by anil and barun

s1 and s2 is speed of anil and barun

Speed=Distance/time

time=Distance/speed

t1/t2=(d/s1)/(d/s2)

t1/t2=s2/s1

t1/t2=40/144

t1/t2=5/18