What will come in the place of the question mark (?) in the following equation if ‘+’ and ‘–’ are interchanged and ‘×’and ‘÷’ are interchanged?
113 ÷ 4 – 217 × 7 + 4 = ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 479.
113 ÷ 4 – 217 × 7 + 4 = ?
After interchanging signs,
= 113 × 4 + (217 ÷ 7) - 4
= 113 × 4 + 31 - 4 = ?
= 452 + 31 - 4
= 483 - 4
= 479