A. 7 km/h
B. 5 km/h
C. 3 km/h
D. 2 (1/2) km/h
Explanation:
100 — 10 DS = 10
? —- 1
75 —- 15 US = 5
? —– 1 S = (10 – 5)/2
= 2 2 ½ kmph
Correct Answer: 2 (1/2) km/h ✔
Last Updated: November 19, 2019
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