Question : Directions: If A denotes +, B denotes ×, C denotes –, and D denotes ÷, then what will come in place of (?) in the following equation.
196 D (2 A 3 B 4) = 4 ? 5 B 2
Option 1: A
Option 2: B
Option 3: C
Option 4: D
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Correct Answer: A
Solution :
Given:
A denotes +, B denotes ×, C denotes –, and D denotes ÷
196 D (2 A 3 B 4) = 4 ? 5 B 2
On replacing the letters with the mathematical signs, we get –
L.H.S = 196 D (2 A 3 B 4)
= 196 ÷ (2 + 3 × 4)
= 196 ÷ ( 2 + 12)
= 196 ÷ 14
= 14
Since, L.H.S = R.H.S
Therefore, 14 = 4 ? 5 B 2
⇒ 14 = 4 (?) 5 × 2
⇒ 14 = 4 (?) 10
From the above equation, it is clear that (?) means +.
So, A denotes +. Hence, the first option is correct.
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