# Solve question no. 3 of page no. 78 from the chapter "Average" of textbook "Shaping Maths AB 5B Part I - Solutions".

1.50 + 1.80 + 2.50 + 2.20 = 8

 Press $\overline{)\mathrm{C}}$ 1.50 $\overline{)+}$ 1.80 $\overline{)+}$ 2.50 $\overline{)+}$ 2.20 $\overline{)=}$ Display: 8

The total pocket money of the four girls is \$8.

\$8 $÷$ 4 = \$2

The average amount of pocket money the girls get is \$2.

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