Question

1. A man walks at a speed of 1 m/s and covers a certain distance in some time. But, if he walks at a
speed of 3 m/s, he covers an additional distance of 15 m in the same time. What is the distance he
actually covered?​

Answer 1

Answer:

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Answer 2

Answer:

7.5 m

Explanation:

Case 1:

speed = 1 m/s

distance = speed x time = 1 x t = t

d = t

Case 2:

Time is same as above, time = t

speed = 3 m/s

distance = original distance + 15

distance = d + 15 = t + 15 (because d=t from case 1)

distance = speed x time

t + 15 = 3 x t

15 = 2t

t = 7.5 seconds

Distance = t = 7.5 m