If A denotes ‘+’, B denotes ‘×’, C denotes ‘−’, and D denotes ‘÷’, then what will come in place of ‘?’ in the following equation?
(90 C 9) D 9 B 9 A 9 =?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 90.
Given equation: (90 C 9) D 9 B 9 A 9 =?
Given conditions:
A denotes ‘+’, B denotes ‘×’, C denotes ‘−’, and D denotes ‘÷’
After interchanging the expression becomes:
= (90 − 9) ÷ 9 × 9 + 9
= 81 ÷ 9 × 9 + 9
= 9 × 9 + 9
= 81 + 9
= 90
Hence, option 3 is the correct answer.