The front wheels of a wagon are 7 feet in circumference and the rear wheels are 9 feet in circumference. When the front wheels have made 10 more revolutions than the rear wheels, what distance has the wagon gone?
A. 126 feet
B. 180 feet
C. 189 feet
D. 315 feet
E. 630 feet
সঠিক উত্তরঃ
D.
315 feet
Explanation:
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