Question : Directions: If 8 * 9 # 3 = 51 and 12 * 6 # 4 = 72, then 13 * 11 # 6 = ?
Option 1: 156
Option 2: 128
Option 3: 136
Option 4: 144
Correct Answer: 144
Solution : Given: 8 * 9 # 3 = 51; 12 * 6 # 4 = 72
Use the following mathematical signs in place of given symbols – + in place of * and × in place of #. Like, 8 * 9 # 3 = 51→(8 + 9) × 3 = 17 × 3 = 51 And, 12 * 6 # 4 = 72→(12 + 6) × 4 = 18 × 4 = 72 Similarly, 13 * 11 # 6, we get (13 + 11) × 6 = 24 × 6 = 144
Hence, the fourth option is the correct answer.
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Question : Directions: If 4 * 9 % 2 = 47 and 9 * 0 % 6 = 84, then 5 * 3 % 7 = ?
Option 1: 38
Option 2: 51
Option 3: 42
Option 4: 46
Question : Directions: If 14 @ 8 = 91 and 18 @ 4 = 51, then 21 @ 9 = ?
Option 1: 160
Option 2: 155
Option 3: 151
Option 4: 168
Question : Directions: If 6 A 33 B 11 = 18 and 4 A 18 B 9 = 8, then 3 B 35 A 5 = ?
Option 1: 12
Option 2: 25
Option 3: 21
Option 4: 18
Question : Directions: If 1 @ 9 & 5 = 14 and 2 & 4 @ 3 = 14, then 7 @ 9 & 9 = ?
Option 1: 72
Option 2: 70
Option 3: 68
Option 4: 64
Question : Directions: Select the correct equation after interchanging operations + and – and numbers 4 and 8.
Option 1: 2 + 8 – 4 = 9
Option 2: 8 + 4 – 2 = 10
Option 3: 4 – 8 + 11 = 1
Option 4: 4 – 8 + 11 = 8
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