What will come in the place of question mark (?) in the following equation, if ‘+’ and ‘−‘ are interchanged and ‘×’ and ‘÷’ are interchanged?
99 ÷ 9 − 999 × 9 + 99 = ?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 903.
Given equation: 99 ÷ 9 − 999 × 9 + 99 = ?
On interchanging the signs:
99 × 9 + 999 ÷ 9 - 99 = ?
? = 891 + 111 - 99
? = 1002 - 99 = 903