Which rate is better?
Sam runs 10 miles in 1 1/9 hours. Rina runs 8 miles in 7/8 hours.
1 answer:
speed = distance / time
speed of sam = 10/ (10/9) = 9 miles per hour.
speed of rina = 8 / (7/8) = 8x8/7 = 9.14 miles per hour.
Since, speed of rina is more than that of sam, rina is better.
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