72 ÷ 8 × [{(57 − 49) ÷ 2} + {(85 − 60) ÷ 5} – {(28 − 19) ÷ 3}] is equal to:
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 54.
72 ÷ 8 × [{(57 − 49) ÷ 2} + {(85 − 60) ÷ 5} – {(28 − 19) ÷ 3}]
⇒ 9 × [{(8) ÷ 2} + {(25) ÷ 5} – {(9) ÷ 3}]
⇒ 9 × [{4} + {5} – {3}]
⇒ 9 × [6] = 54