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1. 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?
ST = D
When distance constant,
S ∝
So, ratio of time taken by A and B = 3 : 2
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