Question 60
What is the value of $$(3 \div 4)$$ of $$20 + 16 \div 2 - \left\{(1 \div 3) of 12 + (2 \div 5) of 25\right\}$$?
Solution
$$(3 \div 4)$$ of $$20 + 16 \div 2 - \left\{(1 \div 3) of 12 + (2 \div 5) of 25\right\}$$
$$\left(\frac{3}{4}\right)\times\ 20+\frac{16}{2}-\left\{\left(\frac{1}{3}\right)\times\ 12+\left(\frac{2}{5}\right)\times\ 25\right\}$$
$$\frac{3}{4}\times\ 20+\frac{16}{2}-\frac{1}{3}\times\ 12+\frac{2}{5}\times\ 25$$
$$15+8-4+10$$
$$23-14$$
$$9$$
Hence option D is the correct answer
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