Question : Directions: Select the option that will replace the question mark (?) in the given series. 48, 52, 61, 77, 102, ?
Option 1: 148
Option 2: 238
Option 3: 138
Option 4: 128
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Correct Answer: 138
Solution : Given: 48, 52, 61, 77, 102, ?
Add the square of the consecutive numbers in each number to obtain the next number. 48 + (2)2 = 48 + 4 = 52 52 + (3)2 = 52 + 9 = 61 61 + (4)2 = 61 + 16 = 77 77 + (5)2 = 77 + 25 = 102 102 + (6)2 = 102 + 36 = 138
So, the missing number is 138. Hence, the third option is correct.
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Question : Directions: Select the option that will replace the question mark (?) in the given series. 49, 53, 61, 73, 89, ?
Option 1: 108
Option 2: 109
Option 3: 107
Option 4: 111
Question : Directions: Which of the following numbers will replace the question mark (?) in the given series? 58, 62, 71, 87, 112, ?
Option 1: 158
Option 2: 148
Option 4: 140
Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series. 34, 102, 612, 5508,?
Option 1: 64046
Option 2: 68098
Option 3: 66096
Option 4: 68026
Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series. 48, 54, 45, 51, 42, 48, ?
Option 1: 37
Option 2: 33
Option 3: 39
Option 4: 35
Question : Directions: Which of the following numbers will replace the question mark (?) in the given series? 27, 32, 42, 57, 77, 102, 132, ?
Option 1: 172
Option 2: 167
Option 3: 149
Option 4: 158
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