A car covers a certain distance moving at a constant speed of 50 km h in 3 hours How much more time ...........

Quantitative Aptitude (MTS) Approximation

A car covers a certain distance moving at a constant speed of 50 km/h in 3 hours. How much more time would it have taken to

cover the same distance if the speed had been only 40 km/h?

This questions was previously asked in

SSC MTS 20th October 2021 Shift-1

30 minutes

45 minutes

10 minutes

1 minutes

Let’s break it down:

- First, figure out the distance: At 50 km/h for 3 hours, that’s 50 × 3 = 150 km.

- Now, if you drive 150 km at 40 km/h, that’s 150 ÷ 40 = 3.75 hours, or 3 hours and 45 minutes.

- The extra time is 3 hours 45 minutes minus the original 3 hours, which is 45 minutes.

- Option 1 (30 minutes) is too short—doesn’t fit the math.

- Option 2 (45 minutes) lines up perfectly.

- Option 3 (10 minutes) isn’t even close.

- Option 4 (1 minute) is way off.

So the right answer is:

45 minutes

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