Question
PSLE
Fiona and Japheth ran in a race. When Japheth had completed the race, Fiona had only run 57 of the distance. Fiona's speed was 78 m/min slower than Japheth's speed. Both of them did not change their speeds throughout the race. What was Japheth's speed in m/min?
3 m

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PSLE
Fiona and Japheth ran in a race. When Japheth had completed the race, Fiona had only run 57 of the distance. Fiona's speed was 78 m/min slower than Japheth's speed. Both of them did not change their speeds throughout the race. What was Japheth's speed in m/min?