If A denotes ‘+’, B denotes ‘×’, C denotes ‘−’, and D denotes ‘÷’, then what will come in place of ‘?’ in the following equation?
145 A 27 D 3 B ? = 163
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 2.
Given conditions: A denotes ‘+’, B denotes ‘×’, C denotes ‘−’, and D denotes ‘÷’
Given equation: 145 A 27 D 3 B ? = 163
After interchanging the expression becomes:
145 + 27 ÷ 3 × ? = 163
145 + 9 × ? = 163
9 × ? = 163 - 145
9 × ? = 18 ⇒ ? = 2