Question : Directions: If + means −, − means ×, × means ÷ and ÷ means +, what will come in place of ? in the following equation?
42 × 6 − 7 ÷ 13 + 28 = ?
Option 1: 43
Option 2: 27
Option 3: 34
Option 4: 39
Correct Answer: 34
Solution :
Given:
+ means −, − means ×, × means ÷ and ÷ means +
42 × 6 − 7 ÷ 13 + 28 = ?
After interchanging the symbols according to the question, the equation becomes −
= 42 ÷ 6 × 7 + 13 − 28
= 49 + 13 − 28
= 34
So, after solving the equation the answer is 34. Hence, the third option is correct.
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