If I denotes ‘÷’, J denotes ‘×’, K denotes ‘−’ and L denotes ‘+’, then what will come in place of ‘?’ in the following equation?
15 L (3 J 9) K (12 J 2) L (189 I 9) L 29 = ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 68.
Given the equation: 15 L (3 J 9) K (12 J 2) L (189 I 9) L 29 =?
After interchanging the expression becomes:
= 15 + (3 × 9) - (12 × 2) + (189 ÷ 9) + 29
= 15 + (27) - (24) + (21) + 29
= 92 - 24
= 68