What will come in the place of the question mark (?) in the following equation, if ‘+’ and ‘−’ are interchanged and ‘×’ and ‘÷’ are interchanged?
18 ÷ 5 + 26 − 45 × 5 = ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4, i.e., 73.
After interchanging signs,
= (18 × 5) - 26 +(45 ÷ 5)
= 90 - 26 + 9
= 64 + 9
= 73