Question
PSLE
Ethan completed the race in 220 seconds. He was 20 seconds slower than Billy. How long did Billy take to complete the race? Give your answer in min and s. (Eg 1 min 2 s)
1 m

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PSLE
Ethan completed the race in 220 seconds. He was 20 seconds slower than Billy. How long did Billy take to complete the race? Give your answer in min and s. (Eg 1 min 2 s)