What will come in the place of question mark (?) in the following equation if '+' and '-' are interchanged and '×' and '÷' are interchanged?
143 - 28 × 4 ÷ 5 + 22 = ?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 156.
143 - 28 × 4 ÷ 5 + 22 = ?
After interchanging signs,
= 143 + (28 ÷ 4) × 5 - 22
= 143 + (7 × 5) - 22
= (143 + 35) - 22
= 143 + 13
= 156