Question
PSLE
Ian and Ken ran in a race around a 500 m track. Ian ran at a speed of 157 m/min and Ken at a speed that was 20 m/min slower than Ian throughout the race. How many complete rounds would Ian have finished when he ran a distance of 800 m more than Ken?
3 m

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PSLE
Ian and Ken ran in a race around a 500 m track. Ian ran at a speed of 157 m/min and Ken at a speed that was 20 m/min slower than Ian throughout the race. How many complete rounds would Ian have finished when he ran a distance of 800 m more than Ken?