If A denotes ‘+’, B denotes ‘×’, C denotes ‘−’, and D denotes ‘÷’, then what will come in place of ‘?’ in the following equation?
140 D 7 A 30 = 25 B ? D 8
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 16.
Given equation: 140 D 7 A 30 = 25 B ? D 8
Given conditions:
A denotes ‘+’
B denotes ‘×’
C denotes ‘−’
D denotes ‘÷’
After interchanging the expression becomes:
= 140 ÷ 7 + 30 = 25 × ? ÷ 8
= 20 + 30 = 25 × ? ÷ 8
= 50 = 25 × ? ÷ 8
= 400 = 25 × ?
= ? = 16