What will come in the place of '?' in the following equation, if '+' and '÷' are interchanged and '×' and '-' are interchanged?
21 + 3 - 7 ÷ 11 × 4 = ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 56.
Given equation: 21 + 3 - 7 ÷ 11 × 4 = ?
Given conditions: '+' and '÷' are interchanged and '×' and '-' are interchanged
After interchanging the expression becomes:
= 21 ÷ 3 × 7 + 11 - 4
= 7 × 7 + 11 - 4
= 49 + 11 - 4
= 60 - 4
= 56
Hence, 56 is the correct answer.