What will come in the place of the question mark (?) in the following equation, if '+' and '-' are interchanged and '×' and '÷' are interchanged?
198 × 9 + 29 - 7 ÷ 10 = ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 63.
198 × 9 + 29 - 7 ÷ 10 = ?
After interchanging signs,
= 198 ÷ 9 - 29 + 7 × 10
= 22 - 29 + 70
= 70 - 7 = 63.