Question : The value of $9\times [(9 - 4) \div{\{(8 \div 8\ \text{of}\ 4) +(4 \div 4 \ \text{of}\ 2)}\}]$ is:
Option 1: $20$
Option 2: $60$
Option 3: $\frac{15}{4}$
Option 4: $\frac{15}{2}$
Correct Answer: $60$
Solution :
Given: The expression is $9\times [(9 - 4) \div {\{(8 \div 8\ \text{of}\ 4) +(4 \div 4 \ \text{of}\ 2)}\}]$
$=9\times [(9 - 4) \div {\{(8 \div 32) +(4 \div 8)}\}]$
$=9\times [5 \div (\frac{1}{4} +\frac{1}{2})]$
$=9\times [5 \div \frac{3}{4}]$
$=9\times [5\times \frac{4}{3}]=9\times \frac{20}{3}=60$
Hence, the correct answer is $60$.
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