The value of 4 + [3{35 +(42 + 10 ÷ 2 × 3 - 40)} + 7] is :
Answer & explanation
Correct answer: option 2
4 + [3 {35 + (42 + 10 ÷ 2 × 3 - 40)} + 7]
= 4 + [3 {35 + (42 + 5 × 3 - 40)} + 7]
= 4 + [3 {35 + (42 + 15 - 40)} + 7]
= 4 + [3 {35 + 17} + 7]
= 4 + [3 × 52 + 7]
= 4 + [156 + 7]
= 4 + 163 = 167