Question : Directions: If P denotes +, Q denotes –, R denotes ÷, and S denotes ×, then 18 S 36 R 12 Q 6 P 7 = ?
Option 1: 115
Option 2: 65
Option 3: 55
Option 4: 25
Correct Answer: 55
Solution :
Given:
18 S 36 R 12 Q 6 P 7 = ?
After replacing the letters with mathematical signs, the equation becomes –
= 18 × 36 ÷ 12 – 6 + 7
= 18 × 3 – 6 + 7
= 54 – 6 + 7
= 61 – 6
= 55
Hence, the third option is correct.
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