Question : Directions: Four triads of numbers have been given out of which three are alike in some manner and one is different. Select a different one.
NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 – operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)
Option 1: 19 – 37 – 73
Option 2: 14 – 29 – 59
Option 3: 23 – 47 – 95
Option 4: 3 – 7 – 15
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Correct Answer: 19 – 37 – 73
Solution : Let's check the options –
First option:
(19 – 37 – 73)→(19 × 2) + 37 + 2 = 38 + 37 + 2 = 77 ≠ 73
Second option:
(14 – 29 – 59)→(14 × 2) + 29 + 2 = 28 + 29 + 2 = 59
Third option:
(23 – 47 – 95)→(23 × 2) + 47 + 2 = 46 + 47 + 2 = 95
Fourth option:
(3 – 7 – 15)→(3 × 2) + 7 + 2 = 6 + 7 + 2 = 15
So, only the first option doesn't follow the same pattern as followed by the given set of numbers. Hence, the first option is correct.
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