Which number will come in the place of the question mark (?) in the following equation if ‘+’ and ‘-’ are interchanged and ‘×’ and ‘÷’ are interchanged?
20 + 10 × 2 - 4 ÷ 5 = ?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 35.
Given equation: 20 + 10 × 2 - 4 ÷ 5 = ?
If ‘+’ and ‘-’ are interchanged and ‘×’ and ‘÷’ are interchanged:
20 - (10 ÷ 2) + (4 × 5) = ?
= 20 - 5 + 20
= 40 - 5 = 35