1.

Mr. Kumar drives to work at an average speed of 48 km per hour. The time taken to cover the first 60% of the distance is 10 minutes more than the time taken to cover the remaining distance. How far is his office?1. 30 Km2. 40 Km3. 48 Km4. 56 Km

Answer» Correct Answer - Option 2 : 40 Km

Given:

Mr. Kumar drives to work at an average speed of 48 km per hour

The time taken to cover the first 60% of the distance is 10 minutes more than the time taken to cover the remaining distance.

Concept used:

When the speed Is constant then the ratio of Distance and Time is directly proportional

Speed = Distance/Time

Calculation:

The ratio of Time is

⇒ 60x : 40x = 3x : 2x

According to the questions

⇒ 3x - 2x = 10 mins

⇒ x = 10 minx

Tota time = 5x = 50 mins

⇒ Distance = 48 × (50/60)

⇒ Distance = 40 km.

∴ Mr. Kumar office is 40 km away.



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