Dave has

Dave has 150 kites. He sold 1/2 of them on Monday and 1/3 of the remaining on Tuesday. How many kites were not sold? What is asked in the problem?

A. The number of sold kites
B. The number of unsold kites

Correct answer:

a =  107
b =  53

Step-by-step explanation:

$$\begin{gathered} n=160 \\ M=\frac{1}{2}\cdot n=\frac{1}{2}\cdot 160=\frac{1\cdot 160}{2}=\frac{160}{2}=80 \\ T=[\frac{1}{3}\cdot (n-M)]=[\frac{1}{3}\cdot (160-80)]=27 \\ a=M+T=80+27=107 \end{gathered}$$

$b=n-a=160-107=53$

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