Time & distance

Quantitative Aptitude (CHSL)

Title

45:30

8 of 24 completed

5 of 15 completed

38 of 100 completed

8 of 20 completed

Indian Economy - Understanding the basics of Indian economic system

A bus goes to Mumbai from Delhi at the speed of 60 km/h for 60% of the journey, and covers the remaining part of its journey

at the speed of 70 km/h. What is the average speed of the bus (in km/h) during the entire journey under consideration?

This questions was previously asked in

SSC CHSL 26th May 2022 Shift-3

- Let the total distance = 100 km (for simple calculation).

- 60% of journey = 60 km at 60 km/h. Time = 60/60 = 1 hour.

- 40% of journey = 40 km at 70 km/h. Time = 40/70 = 4/7 hours.

- Total time = 1 + 4/7 = 11/7 hours.

- Average speed = Total distance / Total time = 100 ÷ (11/7) = 100 × 7 / 11 ˜ 63.64 km/h.

- Closest to Option 2: 64.

- Options analysis:

- Option 1 (67): Too high.

- Option 3 (66): High.

- Option 4 (65): High.

- Option 2 (64): Closest match.