Question
What is the value of 7 ÷ 2 - [3 of 7 ÷ 4 ÷ {(2
÷ 5) × (25 ÷ 8) ÷ (5 ÷ 2)}]?Solution
⇒ 7 ÷ 2 – [3 of 7 ÷ 4 ÷ {(2 ÷ 5) × (25 ÷ 8) ÷ (5 ÷ 2)}] ⇒ 7 ÷ 2 – [3 of 7 ÷ 4 ÷ {(2/5) × (25/8) ÷ (5/2)}] ⇒ 7 ÷ 2 – [3 of 7 ÷ 4 ÷ {(2/5) × (5/4)}] ⇒ 7 ÷ 2 – [3 of 7 ÷ 4 ÷ (1/2)] ⇒ 7 ÷ 2 – [21 ÷ 4 ÷ (1/2)] ⇒ 7 ÷ 2 - [21 ÷ 4 × 2] ⇒ 7/2 – 21/2 ⇒ -14/2 = -7
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