If 60 @ 35 # 15 * 6 = -65 and 40 @ 30 # 6 * 7 = - 32, then 90 @ 10 # 6 * 5 = ?
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 50.
@ means -, # means -, * means ×
60 @ 35 # 15 * 6= -65 → 60 - 35 - 15 × 6 = 60 - 35 - 90 = 60 - 125 = -65
40 @ 30 # 6 * 7 = - 32 → 40 - 30 - 6 × 7 = 40 - 30 - 42 = 40 - 72 = -32
Then, 90 @ 10 # 6 * 5 = ? → 90 - 10 - 6 × 5 = 90 - 10 - 30 = 90 - 40 = 50