Question : Directions: If A denotes +, B denotes ×, C denotes –, and D denotes ÷, then what will come in place of '?' in the following equation?
77 A 23 B 2 A 25 D 5 = 8 B 32 D 4 ? 64
Option 1: D
Option 2: A
Option 3: C
Option 4: B
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Correct Answer: A
Solution :
Given:
If A denotes +, B denotes ×, C denotes –, and D denotes ÷.
77 A 23 B 2 A 25 D 5 = 8 B 32 D 4 ? 64
After replacing symbols according to the instructions the equation becomes –
⇒ 77 + 23 × 2 + 25 ÷ 5 = 8 × 32 ÷ 4 ? 64
⇒ 77 + 23 × 2 + 5 = 8 × 8 ? 64
⇒ 77 + 46 + 5 = 64 ? 64
⇒ 128 = 64 + 64
⇒ 128 = 128
Therefore, to make the R.H.S. = L.H.S. we need to replace (?) with +, and + denotes A. Hence, the second option is correct.
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