Question 961
Find the missing number: 196 : 256 :: 324 : ?
- AOption (a)
400
- BOption (b)
380
- COption (c)
441
- DOption (d)
341
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Correct answer
400
Why this answer is correct
The logic followed here is:
Logic: Each number is a perfect square, and the second number in the pair is the square of the next even number after the square root of the first number.
Now,
For 196 : 256
⇒ √196 = 14, next even number = 16, 16² = 256
Similarly, for 324 : ?
⇒ √324 = 18, next even number = 20, 20² = 400
Hence, the correct answer is "Option 1".