Q80
The ratio of speeds of A and B is 2 : 3 and therefore A takes 20 minutes more time than B. What is the ratio of time taken by A and B?
A.
2 : 3
B.
2 : 5
C.
3 : 2
AnswerD.
3 : 5
Answer: Option C
Solution
Answer: Option C
Solution:
When distance is constant then Speed is inversely proportional to time.ST = D
When distance constant,
S ∝
So, ratio of time taken by A and B = 3 : 2