If ‘A’ stands for ‘÷’ , ‘B’ stands for ‘x’, ‘C’ stands for ‘+’ and ‘D’ stands for ‘-‘ , what will come in place of the question mark ‘?’ in the following equation? 279 B 52 A 468 C 624 D 438=?
217
Replace each letter with its sign: A → ÷, B → ×, C → +, D → –. The expression becomes 279 × 52 ÷ 468 + 624 – 438.
Follow BODMAS: multiplication and division first, from left to right. 279 × 52 = 14508, and 14508 ÷ 468 = 31.
Then 31 + 624 – 438 = 655 – 438 = 217.
Check: \(\frac{279 \times 52}{468} = \frac{279}{9} = 31\) because 468 = 52 × 9; and 31 + 624 = 655, 655 – 438 = 217, confirming the value.
Hence, 217.
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(5, 22, 110)
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