What will be the value of the given expression if ‘A’ means ‘+’, ‘B’ means ‘–’, ‘C’ means ‘×’, and ‘D’ means ‘÷’?
15 C 7 B (24 D 8) A 16 C 4 B 21 D 3
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3. i.e. 159.
Given equation: 15 C 7 B (24 D 8) A 16 C 4 B 21 D 3
Given conditions:
‘A’ means ‘+'
‘B’ means ‘–’
‘C’ means ‘×’
‘D’ means ‘÷’
After interchanging the expression becomes:
= 15 × 7 – (24 ÷ 8) + 16 × 4 – 21 ÷ 3
= 15 × 7 – 3 + 16 × 4 – 21 ÷ 3
= 15 × 7 – 3 + 16 × 4 – 7
= 105 – 3 + 64 – 7
= 159
Hence, option 3 is the correct answer.