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Question

Answer

(a)
Jeffery : Thomas
72 : 60
6 : 5
18 : 15

18 x 60 = 1080 or 15 x 72 = 1080
1080 s = 18 min

(b)
18 – 15 = 3

Ans : (a) 18 min; (b) 3 laps.

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