Question
PSLE
A store owner had the same number of guavas, lemons and grapefruits at first. After 47 grapefruits, some guavas and lemons were sold, there were 142 fruits left. There were 4 times as many guavas as lemons left. The number of grapefruits left was 20 less than the number of guavas left. How many lemons were sold?
4 m

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PSLE
A store owner had the same number of guavas, lemons and grapefruits at first. After 47 grapefruits, some guavas and lemons were sold, there were 142 fruits left. There were 4 times as many guavas as lemons left. The number of grapefruits left was 20 less than the number of guavas left. How many lemons were sold?