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: 14 – 44 – 29
Option 2: 36 – 66 – 51
Option 3: 29 – 44 – 14
Option 4: 21 – 51 – 36
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Correct Answer: 29 – 44 – 14
Solution : Let's check each option – First option: (14 – 44 – 29); (14 + 44) ÷ 2 = 58 ÷ 2 = 29 Second option: (36 – 66 – 51); (36 + 66) ÷ 2 = 102 ÷ 2 = 51 Third option: (29 – 44 – 14); (29 + 44) ÷ 2 = 73 ÷ 2 = 36.5 ≠ 14 Fourth option: (21 – 51– 36); (21 + 51) ÷ 2 = 72 ÷ 2 = 36
So, the third option does not follow the pattern of the other three options as here, the sum of the first and second numbers when divided by two is not equal to the third number. Hence, the third option is correct.
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