If + means − , − means × , × means ÷ , ÷ means +, what will come in place of the question mark (?) in the given equation?
70 × 2 – 4 ÷ 60 + 150 = ?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 50.
70 × 2 – 4 ÷ 60 + 150 = ?
After interchanging the signs:
= (70 ÷ 2) × 4 + 60 - 150
= (35 × 4) + 60 - 150
= (140 + 60) - 150
= 200 - 150
= 50