Time and Distance Practice Test 2 with solutions

Question : 7 of 40

Marks: +1, -0

Prof. Mandal walks to the market and comes back in an auto. It takes him 90 minutes to make the round trip. If he takes an auto both ways, it takes him 30 minutes. On a Sunday, he decides to walk both ways. How long would it take him?

100 minutes
120 minutes
140 minutes
150 minutes
None of the above

Validate

Solution:

Duration taken by auto in both ways = 30 minutes
Duration taken by auto in one way =

{30}/2

= 15 minutes.
Duration taken by walk and auto = 90 minutes
Duration taken by walk at one way = 90 - 15 = 75 minutes
Duration taken by two-way walk = 75 × 2 = 150 minutes.

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