Question
PSLE
Xavier and Riordan ran in a race around a 600 m track. Xavier ran at a speed of 138 m/min and Riordan at a speed that was 25 m/min slower than Xavier throughout the race. How many complete rounds would Xavier have finished when he ran a distance of 600 m more than Riordan?
3 m

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PSLE
Xavier and Riordan ran in a race around a 600 m track. Xavier ran at a speed of 138 m/min and Riordan at a speed that was 25 m/min slower than Xavier throughout the race. How many complete rounds would Xavier have finished when he ran a distance of 600 m more than Riordan?