Question : Directions: In the following question, select the related number from the given alternatives.
11 : 121 : 110 :: 15 : 225 : 210 :: ?
Option 1: 9 : 81 : 70
Option 2: 19 : 361 : 342
Option 3: 17 : 288 : 272
Option 4: 16 : 255 : 239
Correct Answer: 19 : 361 : 342
Solution :
Given:
11 : 121 : 110 :: 15 : 225 : 210 :: ?
Like, 11 : 121 : 110→11
2
= 121; 121 – 11 = 110
15 : 225 : 210→15
2
= 225; 225 – 15 = 210
Let's check the options –
First option:
9 : 81 : 70; 9
2
= 81; 81 – 9 = 72 ≠ 70
Second option:
19 : 361 : 342; 19
2
= 361; 361 – 19 = 342
Third option:
17 : 288 : 272; 17
2
= 289 ≠ 288; 289 – 17 = 272
Fourth option:
16 : 255 : 239; 16
2
= 256 ≠ 255; 256 – 16 = 240 ≠ 239
Hence, the second option is correct.
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