Question : Directions: Select the option that is related to the fifth number in the same way as the second number is related to the first number and the fourth number is related to the third number:
15 : 256 :: 16 : 289 :: 18 : ?
Option 1: 336
Option 2: 441
Option 3: 342
Option 4: 361
Correct Answer: 361
Solution :
Given:
15 : 256 :: 16 : 289 :: 18 : ?
Like, 15 : 256→(15 + 1)
2
= (16)
2
= 256
16 : 289→(16 + 1)
2
= (17)
2
= 289
Similarly, follow the same pattern for 18 : ?→(18 + 1)
2
= (19)
2
= 361
So, 361 is the required answer. Hence, the fourth option is correct.
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