If ‘A’ denotes ‘addition’, ‘B’ denotes ‘multiplication’, ‘C’ denotes ‘subtraction’, and ‘D’ denotes ‘division’, then what will be the value of the following expression?
90 D (2 B 5) A 4 B (12 A 10) C 4 B (17 C 10)
Show answer & explanation
Correct answer: D
Explanation
The correct answer is Option 4 i.e. 69
Given conditions:
‘A’ means ‘+’
‘B’ means ‘×’
‘C’ means ‘-’
‘D’ means ‘÷’
After interchanging the expression becomes:
= 90 ÷ (2 × 5) + 4 × (12 + 10) - 4 × (17 - 10)
= 90 ÷ 10 + 4 × 22 - 4 × 7
= 9 + 4 × 22 - 4 × 7
= 9 + 88 - 28
= 69
Hence, 69 is the correct answer.