What will come in the place of the question mark (?) in the following equation, if ‘+’ and ‘−’ are interchanged and ‘×’ and ‘÷’ are interchanged?
315 × 15 − 93 + 16 ÷ 7 = ?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 2.
Given equation: 315 × 15 − 93 + 16 ÷ 7 = ?
if ‘+’ and ‘−’ are interchanged and ‘×’ and ‘÷’ are interchanged:
= (315 ÷ 15) + 93 - 16 × 7
= 21 + 93 - (16 × 7)
= (21 + 93) - 112
= 114 - 112
= 2