Multiple Choice Question

Smriti goes to a shopping mall at a speed of 21 km/hr and returns at a speed of 69 km/hr. Find her average speed (in km/hr) for the entire trip.

A

40.2
B

30.3
C

32.2
D

23.4

Explanation:

Average speed = 2xy/(x+y) ⇒ 2×21×69/90 = 32.2 km/hr.

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This question belongs to the set "RRB Group D 2025 Question Paper – 27 November Shift 1 | Set 2 (Q26–Q50) Mathematics". Click below to read detailed notes and attempt the full quiz.

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