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Pooja and Nita have to travel from Delhi to Jodhpur in their respective cars. Pooja is driving at 60 km/h while Nita is driving at 90 km/h. Find the Time taken by Nita to reach Jodhpur if Pooja takes 9 hrs.


1. 6 hrs.
2. 5 hrs.
3. 4 hrs.
4. 3 hrs.

1 Answer

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Best answer
Correct Answer - Option 1 : 6 hrs.

Given:

The driving speed of pooja and Nita are 60 km/h and 90 km/h respectively.

The time taken by Pooja to reach Jodhpur is 9 hrs.

Concept Used:

If the distance covered is constant, the Time taken will be inversely proportional to the Speed.

Calculation:

The ratio of the speed of Pooja and Nita = 60 90 = 2 3

The ratio of the time taken by Pooja to that taken by Nita will be 3 ∶ 2.

Pooja takes 9 hrs. to travel from Delhi to Jodhpur

3 unit → 9 hrs.

2 unit → (9 × 2)/3 = 6 hrs.

Time taken by Nita to reach Jodhpur is 6 hrs.

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