72 ÷ 8 × [{(57 − 49) ÷ 2} + {(85−60) ÷ 5} − {(28 − 19) ÷ 3}] is equal to:
Answer & explanation
Correct answer: option 3
Using BODMAS rule
72 ÷ 8 × [{(57 − 49) ÷ 2} + {(85 − 60) ÷ 5} – {(28 − 19) ÷ 3}]
= 72 ÷ 8 × [{8 ÷ 2} + {25 ÷ 5} – {9 ÷ 3}]
= 72 ÷ 8 × [4 + 5 – 3]
= 72 ÷ 8 × [6]
= 9 × [6]
= 54