Verbal Reasoning - Character Puzzles - Discussion

Discussion :: Character Puzzles - Character Puzzles 1 (Q.No.14)

14. 

Which one will replace the question mark ?

[A]. 184
[B]. 210
[C]. 241
[D]. 425

Answer: Option A

Explanation:

(12)2 - (8)2 = 80

and (16)2 - (7)2 = 207

Therefore (25)2 - (21)2 = 184.


M.K.Jain said: (Oct 2, 2012)  
(12+8) (12-8) =80.
(16+7) (16-7) =207.
(25+21) (25-21) =184.

Fayaz said: (Jan 6, 2017)  
12 - 8 = 4.
4 * 12 = 48.
4 * 8 = 32.
48 + 32 = 80.

25-21 = 4.
25 * 4 = 100.
21 * 4 = 84.
100 + 84 = 184.

Siva Prasanth said: (Jun 6, 2017)  
12 + 8 = 20 then 20 * 4 = 80.
16 + 7 = 23 then 23 * 9 = 207.
21 + 25 = 46 then 46 * 4 = 184.

Arif Hassan said: (Jun 13, 2020)  
Thanks for explaining the solution.

Zain Bilal said: (Apr 10, 2021)  
12+8 = 20*(12-8) = 80.
16+7 = 23*(16-7) = 207.
25+21 = 46 * (25-21) = 184.

Suresh said: (Sep 15, 2021)  
12 * 12 - 8 * 8 = 80,
16 * 16 - 7 * 7 = 207,
25 * 25 - 21 * 21 = 184.

Suresh said: (Sep 15, 2021)  
12 * 12 - 8 * 8 = 80,
16 * 16 - 7 * 7 = 207,
25 * 25 - 21 * 21 = 184.

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