Question

A car covers a distance at 30 km/h for the first 3 hours and then covers another distance at 40 km/h for the next 2 hours . find the ratio of the distance travelled in the two cases.

Answer 1

Ratio of distance traveled

Answer: Ratio of Distance traveled for first 3 hours : Distance traveled for Next 2 hours is 9 : 8.

Explanation:

Given that a car covers a distance at 30 km/h for the first 3 hours.

Then covers another distance at 40 km/hr for next 2 hours.

Need to find the ratio of the distance traveled in two cases.

As Distance = Speed × Time

Distance traveled for first 3 hours = Speed for first 3 hours ×  3 hours = 30km/h  × 3h = 90km

⇒Distance traveled for first 3 hours = 90km

Distance traveled for next 2 hours = Speed for next 2 hours × 2 hours = 40km/h  × 2h = 80km

⇒Distance traveled for Next 2 hours = 80km

so ratio of Distance traveled for first 3 hours : Distance traveled for Next 2 hours = 90 : 80 that is 9 : 8.

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