Question
PSLE
Fred and Jack ran in a race around a 400 m track. Fred ran at a speed of 138 m/min and Jack at a speed that was 20 m/min slower than Fred throughout the race. How many complete rounds would Fred have finished when he ran a distance of 700 m more than Jack?
3 m

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PSLE
Fred and Jack ran in a race around a 400 m track. Fred ran at a speed of 138 m/min and Jack at a speed that was 20 m/min slower than Fred throughout the race. How many complete rounds would Fred have finished when he ran a distance of 700 m more than Jack?