Exams › SSC CGL (Prelims) › General
The second number is obtained from the first using a fixed rule. Apply the same rule to find the missing value. 21 : 445 :: 24 : ?
- 505
- 495
- 523
- 580
Correct answer: 580
Solution
The rule is: second = first squared + 4. 21^2 = 441, 441 + 4 = 445. Applying to 24: 24^2 = 576, 576 + 4 = 580.
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