Q: Raima covered some distance with a speed of 7 km/h on foot and some distance at a speed of 12 km/h on a bicycle. He had covered a distance of 64 km in 7 hours. How many hours did he travel on a bicycle?
A.
2
B.
3
C.
5
D.
4
Correct Answer:
Option B -
Explanations:
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