If A denotes ‘+’, B denotes ‘×’, C denotes ‘−’, and D denotes ‘÷’, then what will be the value of the following expression?
25 C 21 D 7 B 3 A 4
Show answer & explanation
Correct answer: A
Explanation
The correct answer is Option 1 i.e. 20.
Given conditions: A denotes ‘+’, B denotes ‘×’, C denotes ‘−’, and D denotes ‘÷’
Given equation: 25 C 21 D 7 B 3 A 4
After interchanging the expression becomes:
= 25 − 21 ÷ 7 × 3 + 4
= 25 − 3 × 3 + 4
= 25 − 9 + 4
= 29 − 9
= 20
Hence, 20 is the correct answer.