Question
PSLE
Vincent and Riordan ran in a race around a 400 m track. Vincent ran at a speed of 148 m/min and Riordan at a speed that was 18 m/min slower than Vincent throughout the race. How many complete rounds would Vincent have finished when he ran a distance of 900 m more than Riordan?
3 m

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PSLE
Vincent and Riordan ran in a race around a 400 m track. Vincent ran at a speed of 148 m/min and Riordan at a speed that was 18 m/min slower than Vincent throughout the race. How many complete rounds would Vincent have finished when he ran a distance of 900 m more than Riordan?