Question : Directions: If 27 * 4 = 77 and 31 * 9 = 239, then 21 * 6 = ?
Option 1: 94
Option 2: 107
Option 3: 99
Option 4: 106
Correct Answer: 99
Solution : Given: 27 * 4 = 77 and 31 * 9 = 239
Like, 27 * 4 = 77→27 × 4 = 108; 27 + 4 = 31; 108 – 31 = 77 And, 31 * 9 = 239→31 × 9 = 279; 31 + 9 = 40; 279 – 40 = 239 Similarly, follow the same pattern for 21 * 6 = ?→21 × 6 = 126; 21 + 6 = 27; 126 – 27 = 99
So, 99 is the answer to the given equation. Hence, the third option is correct.
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Question : Directions: In the following question, correct the equation by interchanging any two numbers. 5 + 3 ÷ 6 × 9 – 2 = 21
Option 1: 5 and 9
Option 2: 3 and 6
Option 3: 6 and 9
Option 4: 5 and 3
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
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 16 ÷ 4 = 74, 21 ÷ 7 = 33, 81 ÷ 9 = 99 then 55 ÷ 5 =?
Option 1: 110
Option 2: 1001
Option 3: 11
Option 4: 1011
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
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