Question : Directions: If A denotes addition, B denotes multiplication, C denotes subtraction, and D denotes division, then what will be the value of the following expression?
74 A (31 B 2) B 2 C (68 C 4) D (4 B 2) = ?
Option 1: 188
Option 2: 190
Option 3: 98
Option 4: 160
Correct Answer: 190
Solution :
Given:
74 A (31 B 2) B 2 C (68 C 4) D (4 B 2) = ?
On replacing the alphabet with mathematical signs, we get –
= 74 + (31 × 2) × 2 – (68 – 4) ÷ (4 × 2)
= 74 + 62 × 2 – 64 ÷ 8
= 74 + 62 × 2 – 8
= 74 + 124 – 8
= 190
Hence, the second option is correct.
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