Question
PSLE
Joelle had toy planes for sale. In the morning, she sold 15 of the toy planes. In the afternoon, she sold 14 of the remaining toy planes. After that, there were 21 toy planes left. How many toy planes did Joelle have at first?
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PSLE
Joelle had toy planes for sale. In the morning, she sold 15 of the toy planes. In the afternoon, she sold 14 of the remaining toy planes. After that, there were 21 toy planes left. How many toy planes did Joelle have at first?