Math, asked by mnazirul243, 15 hours ago

After a car A started travelling at a speed of 90 km/h, half-hour later from the same place in the same direction starts car B travelling at 120km/h. When will car B reach the car A?

Answers

Answered by nishthasinghkushwah
0

Answer:

After 1½ hour

I hope this will help you

Answered by ankan2778
2

Answer:

Concept Used:

If the distance is constant then, the time taken will be inversely proportional to the speed.

Calculation:

Ratio of Speed = 90 120 3:4

:: Distance traveled is constant, the ratio of Time taken will be 4:3.

We can say that the total time taken is 7 unit.

According to the question,

The total time taken is 7 hours.

7 unit 7 hours

→ 4 unit → → (7 × 4)/7 = 4

→ 3 unit (7 x 3)/7 = 3

Time taken while going is 4 hours and returning is 3 hours.

Distance travelled = 90 x 4 = 360 km.

:: Distance travelled is 360 km.

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