Which two signs need to be interchanged to make the following equation correct?
151 + 17 × 18 ÷ 2 − 19 = 17
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1, i.e.,- and +.
After interchanging signs,
151 - 17 × (18 ÷ 2) + 19 = 17
151 - 17 × 9 + 19 = 17
151 - 153 + 19 = 17
151 - 134 = 17
17 = 17