A man covers a distance at a speed of 60 kmph and returns back at a speed of 40 kmph. What is his average speed for the whole journey? MCQ with Answer and Explanation

Question

A man covers a distance at a speed of 60 kmph and returns back at a speed of 40 kmph. What is his average speed for the whole journey?

A. 52 kmph

B. 50 kmph

C. 48 kmph

D. 55 kmph

Answer: Option C

Solution (By JKSSB Mock Tests)

Average speed = 2×60×40/(60+40) = 4800/100 = 48 kmph. (Note: Not percentage but included as tough TSD).

This question belongs to: Maths Percentage

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Question #1

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Side of square increased 10%. % increase in area:

A. 21%

B. 25%

C. 20%

D. 22%

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Correct Answer: Option A

Explanation:
Area multiplier = 1.1² = 1.21, increase 21%.

This question belongs to: Maths Percentage

Question #2

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What is 33.33% of 99?

A. 99

B. 33

C. 66

D. 11

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Correct Answer: Option B

Explanation:
33.33% is equivalent to the fraction 1/3. (1/3) * 99 = 33.

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Question #3

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30% of 150 + 20% of 50 = ?

A. 65

B. 60

C. 55

D. 70

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Correct Answer: Option C

Explanation:
30% of 150 = 45, 20% of 50 = 10, sum = 55.

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