Question

Read the directions carefully and answer the following questions.  Four number – pairs are given, three of which are alike in certain manner, and one is different. Choose the different number – pair.

A 369 : 387 Correct Answer Incorrect Answer
B 225 : 234 Correct Answer Incorrect Answer
C 441 : 450 Correct Answer Incorrect Answer
D 625 : 639 Correct Answer Incorrect Answer

Solution

Logic: Sum of the number + Sum of the digits of the numbers. 369 + (3+6+9 = 18) = 369 + 18 = 387 225 + (2+2+5 = 9) = 225 + 9 = 234 441 + (4+4+1 = 9) = 441 + 9 = 450 625 + (6+2+5 = 13) = 625 + 13 = 638

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