MCQ
$8 - [28 ÷ \{34 - (36 - 18 ÷ 9 \times 8)\}] = ?$
- ✓$6$
- B$6\frac{4}{9}$
- CNone of these.
- D$7$
✓
Answer
Correct option: A.
$6$
Given expression:
$= 8 - [28 ÷ \{34 - (36 - 18 ÷ 9 × 8)\}] [$Performing division$]$
$= 8 - [28 ÷\{34 - (36 - 2 × 8)\}] [$Performing multiplication$]$
$= 8 - [28 ÷ \{34 - (36 - 16)\}]$
$= 8 - [28 ÷ \{34 - 20\}] [$Removing parentheses$]$
$= 8 - [28 ÷ 14] [$Removing braces$]$
$= 8 - 2$
$= 6 [$Removing square brackets$]$
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