Question : Directions: Select the option that is related to the third number in the same way as the second number is related to the first number.
289 : 325 :: 361 : ?
Option 1: 400
Option 2: 401
Option 3: 399
Option 4: 411
Correct Answer: 401
Solution :
Given:
289 : 325 :: 361 : ?
The relationship depicts the first number as a square of 17 and the second number as a square of 18 + 1.
Like, 289 : 325→17
2
= 289; (17 + 1)
2
+ 1 = 324 + 1 = 325
Similarly, follow the same pattern for 361 : ?→19
2
= 361; (19 + 1)
2
+ 1 = 20
2
+ 1 = 401
So, the required missing number is 401. Hence, the second option is correct.
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