If ÷ means −, − means ×, × means +, + means ÷, what will come in place of the question mark (?)?
77 ÷ 7 × 17 – 49 + 7 = ?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 189.
Given equation: 77 ÷ 7 × 17 – 49 + 7 = ?
Given conditions:
÷ means −
− means ×
× means +
+ means ÷
After interchanging the expression becomes:
= 77 − 7 + 17 × 49 ÷ 7
= 77 − 7 + 17 × 7
= 77 − 7 + 119
= 189
Hence, option 1 is the correct answer.