Supermarket 2

A supermarket had a buko pie sale. In the morning, 2/3 of the pies were sold, and in the afternoon, 1/6 of the pies were sold. If 150 pies were left, how many pies had been sold? Show your solution.

Correct result:

x =  750


x + 150 = n
x = 2/3 n + 1/6 n

x + 150 = n
x = 2/3•n + 1/6•n

n-x = 150
5n-6x = 0

n = 900
x = 750

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