# Select the option that is related to the third number in the same way as the second number is related to the first number. 13 ∶ 195 ∶∶ 18 ∶ ?

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Select the option that is related to the third number in the same way as the second number is related to the first number.

13 ∶ 195 ∶∶ 18 ∶ ?

1. 360
2. 359
3. 358
4. 361

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Correct Answer - Option 1 : 360

The logic follows here is;

LOGIC: (First Number + 1)2 - 1 = Second Number

In 13 ∶ 195;

(13 + 1)2 - 1

= 142 + 1

= 196 - 1

= 195

Similarly;

In 18 : ?;

(18 + 1)2 - 1

= 19- 1

= 361 - 1

= 360