Anne and Beth will participate in a sack race (In a sack race, people hop to reach the finish line). In the time that Anne takes 3 hops, Beth takes 4 hops but the distance covered by Anne in 4 hops is equal to distance covered by Beth in 5 hops. What is the ratio of Anne’s speed: Beth’s speed?
A. 3 : 5
B. 12 : 20
C. 15 : 16
D. 1 : 1
E. 5 : 3
OA C
Source: Veritas Prep
Anne and Beth will participate in a sack race (In a sack race, people hop to reach the finish line). In the time that
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Solution:BTGmoderatorDC wrote: ↑Sat Apr 17, 2021 8:42 pmAnne and Beth will participate in a sack race (In a sack race, people hop to reach the finish line). In the time that Anne takes 3 hops, Beth takes 4 hops but the distance covered by Anne in 4 hops is equal to distance covered by Beth in 5 hops. What is the ratio of Anne’s speed: Beth’s speed?
A. 3 : 5
B. 12 : 20
C. 15 : 16
D. 1 : 1
E. 5 : 3
OA C
We can let the distance of Anne’s 4 hops or Beth’s 5 hops be 20 feet. So each of Anne’s hops is 5 feet and each of Beth’s hops is 4 feet. Since the time for Anne to take 3 hops is the same as the time for Beth to take 4 hops, then, when Anne hops 3 x 5 = 15 ft, Beth hops 4 x 4 = 16 ft. Since these two distances occur over the same period of time, the ratio of Anne’s speed to Beth’s speed is 15 : 16.
Answer: C
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