Question : Directions: In the following question, which number is wrong in the series? 225, 169, 144, 100, 64, 48
Option 1: 225
Option 2: 144
Option 3: 64
Option 4: 48
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Correct Answer: 48
Solution : Given: 225, 169, 144, 100, 64, 48
The given numbers in the series are the perfect squares of the natural numbers – ⇒ 225 = 152; 169 = 132; 144 = 122; 100 = 102; 64 = 82; 48→48 is not a perfect square.
So, 48 is the wrong term for the given series. Hence, the fourth option is correct.
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Question : Directions: Select the number that does not belong to the given series. 2, 8, 3, 27, 4, 64, 5, 225
Option 1: 27
Option 2: 8
Option 3: 225
Option 4: 64
Question : Directions: In the following question, select the related number from the given alternatives. 64 : 100 :: 49 : ?
Option 1: 36
Option 2: 63
Option 3: 81
Option 4: 144
Question : Directions: In the following question, a series is given with one number missing. Select the missing number from the given alternatives. 1, 25, ?, 361, 841, 1681
Option 1: 169
Option 2: 225
Option 3: 161
Option 4: 121
Question : Directions: In the following question, a series is given with one number missing. Select the missing number from the given alternatives. 1, 4, 3, 16, 6, 36, 10, 64, 15, 100, ?
Option 1: 21
Option 2: 19
Option 3: 22
Option 4: 25
Question : Directions: Select the number that will replace the question mark (?) in the following series. 83, 116, 163, 225, 303, ?
Option 1: 414
Option 2: 383
Option 3: 398
Option 4: 378
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