What will come in the place of the question mark (?) in the following equation, if ‘+’ and ‘×’ are interchanged and ‘÷’ and ‘−’ are interchanged?
15 ÷ 5 + 8 − 4 × 7 = ?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 12.
Given equation: 15 ÷ 5 + 8 − 4 × 7 = ?
On interchanging the signs:
15 - 5 × 8 ÷ 4 + 7 = ?
? = 15 - 10 + 7
? = 22 - 10 = 12