If ‘A’ means ‘subtraction’, ‘B’ means ‘division’, ‘C’ means ‘multiplication’, and ‘D‘ means ‘addition’, then what will be the value of the following expression?
8 A 80 B 16 C 90 D 21
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. -421.
Given equation: 8 A 80 B 16 C 90 D 21
Given conditions: ‘A’ means ‘subtraction’, ‘B’ means ‘division’, ‘C’ means ‘multiplication’, and ‘D‘ means ‘addition’
After interchanging the expression becomes:
= 8 − 80 ÷ 16 × 90 + 21
= 8 − 5 × 90 + 21
= 8 − 450 + 21
= -421
Hence, -421 is the correct answer.