Question

8 − [28 ÷ {34 − (36 − 18 ÷ 9 × 8)}] = ?
(a) 6
(b) $6\frac{4}{9}$
(c) none of these

Answer 1

(a ) 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]