A car covered the first 100 km at a spee

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Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

Time, Speed and Distance

Question:

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?

Options:

60 km/ h

62 km/h

58 km/h

64 km/h

Correct Answer:

60 km/ h

Explanation:

Time = \(\frac{Distance }{Speed}\)

Time 1 = \(\frac{100 }{50}\) = 2 hours

Time 2 = \(\frac{140}{70}\) = 2 hours

Average speed = \(\frac{100 + 240 }{2 + 2}\)

= \(\frac{240 }{4}\)

= 60 km/h