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Asifpirlo
An engineer designed a ball so that when it was dropped, it rose with each bounce exactly one-half as high as it had fallen. The engineer dropped the ball from a 16-meter platform and caught it after it had traveled 46.5 meters. How many times did the ball bounce?
A. 5
B. 6
C. 7
D. 8
E. 9

Easy enough to visualize...16 ft travelled on the drop, then the ball rises 8 ft (half) and then falls the same distance, then rises 4 ft and falls, and so on. You know that it must travel 30.5 meters starting with the first bounce-- 16 + 8 + 4 + 2 + 0.5 for 5 bounces.
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Asifpirlo
An engineer designed a ball so that when it was dropped, it rose with each bounce exactly one-half as high as it had fallen. The engineer dropped the ball from a 16-meter platform and caught it after it had traveled 46.5 meters. How many times did the ball bounce?
A. 5
B. 6
C. 7
D. 8
E. 9

1st Drop = 16m
1st Rise = 8m
2nd Drop = 8m
2nd Rise = 4m
3rd Drop = 4m
3rd Rise = 2m
4th Drop = 2m
4th Rise = 1m
5th Drop = 1m
5th Rise = 0.5m

Add all these - 16 + 8 + 8 + 4 + 4 + 2 + 2 + 1 + 1 + 0.50 = 46.50, Answer must be (A) 5
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