A car covered the first 100 km at a speed of 50 km h It covered next 140 km at a speed of 70 km h Wh...........

Quantitative Aptitude (CPO) Time & distance

A car covered the first 100 km at a speed of 50 km/h. It covered next 140 km at a speed of 70 km/h. What is its average speed?

This questions was previously asked in

SSC CPO 10th Nov 2022 Shift 1

60 km/ h

62 km/h

58 km/h

64 km/h

Let's find the average speed of the car.

- Step 1: Calculate the time taken for the first 100 km.

- Distance = 100 km, Speed = 50 km/h

- Time = Distance/Speed = 100/50 = 2 hours

- Step 2: Calculate the time taken for the next 140 km.

- Distance = 140 km, Speed = 70 km/h

- Time = Distance/Speed = 140/70 = 2 hours

- Step 3: Find the total distance and total time.

- Total Distance = 100 km + 140 km = 240 km

- Total Time = 2 hours + 2 hours = 4 hours

- Step 4: Calculate the average speed.

- Average Speed = Total Distance / Total Time = 240 km / 4 hours = 60 km/h

- Check Options:

- Option 1: 60 km/h - Correct

- Option 2: 62 km/h - Incorrect

- Option 3: 58 km/h - Incorrect

- Option 4: 64 km/h - Incorrect

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