What will come in place of the question mark (?) in the following equation if ‘+’ and ‘÷’are interchanged and ‘×’ and ‘−’ are interchanged?
3 ÷ 4 − 5 × 6 + 2 = ?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 20.
3 ÷ 4 − 5 × 6 + 2 = ?
After interchanging the signs we get:
= 3 + 4 × 5 - (6 ÷ 2)
= 3 + (4 × 5) - 3
= (3 + 20) - 3
= 20