Exam Maths Puzzle Profit and Loss

A man sold two-thirds of his pencils for 20 cents each. If he has 7 pencils left, how much money did he collect for the pencils he sold?

Read Solution (Total 1)

280 cents
If total pencils= x,then x-(2x/3)=7, x=21
So pencils sold=21-7= 14
Money collected for pencils sold=14*20= 280 cents
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Exam Other Question

Please solve for X, Y, and Z in the 3 variable equation.

x + 2y + z = 6
x + y = 4
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