Question : Directions: If A denotes +, B denotes ×, C denotes –, and D denotes ÷, then what will come in place of (?) in the following equation?
(51 D 17) A (21 B 9) C 78 A (16 D 4) = ?
Option 1: 124
Option 2: 106
Option 3: 118
Option 4: 112
Correct Answer: 118
Solution :
Given:
(51 D 17) A (21 B 9) C 78 A (16 D 4) = ?
On interchanging the signs given in the equation, the equation becomes –
= (51 ÷ 17) + (21 × 9) – 78 + (16 ÷ 4)
= 3 + 189 – 78 + 4
= 196 – 78
= 118
Hence, the third option is correct.
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