If ‘P’ stands for ‘÷’, ‘Q’ stands for ‘×’, ‘R’ stands for ‘+’ and ‘S’ stands for ‘−’, what will come in place of the question mark ‘?’ in the following equation?
(121 S 46) R 19 Q 5 R 126 P 6 S 38 = ?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 153.
(121 S 46) R 19 Q 5 R 126 P 6 S 38 = ?
After interchangeing signs,
= (121 - 46) + 19 × 5 + 126 ÷ 6 - 38
= 75 + 95 + 21 - 38
= 191 - 38
= 153.