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 = 15
2
; 169 = 13
2
; 144 = 12
2
; 100 = 10
2
; 64 = 8
2
; 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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