The value of 7 ÷ [5 + 1 ÷ 2 - {4 + (4 of 2 ÷ 4) + (5 ÷ 5 of 2)}] is :
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. -7.
7 ÷ [5 + 1 ÷ 2 - {4 + (4 of 2 ÷ 4) + (5 ÷ 5 of 2)}]
⇒ 7 ÷ [5 + 1/2 - {4 + (8 ÷ 4) + (5 ÷ 10)}]
⇒ 7 ÷ [5 + 1/2 - {4 + (2) + (1/2)}]
⇒ 7 ÷ [11/2 - {6 + 1/2}]
⇒ 7 ÷ [11/2 - 13/2]
⇒ 7 ÷ [-2/2]
⇒ 7 ÷ [-1]
⇒ -7