Question

8 − [28 ÷ {34 − (36 − 18 ÷ 9 × 8)}] = ?

Options

• 6

• \[6\frac{4}{9}\]

• none of these

Answer 1

6
Explanation: 
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]