Question

which is odd one given series 246,356,426,527,639

Answer 1

Solution :-

246, 356, 426, 527, 639

There may be two answers of this question.

Answer 1) -

2 + 4 + 6 = 12

3 + 5 + 6 = 14

4 + 2 + 6 = 12

5 + 2 + 7 = 14

6 + 3 + 9 = 18

The sum of all the digits of 1st & 3rd number is 12 and 2nd & 4th number is 14 while the sum of all the digits of 5th number is 18.

So, the odd number from the above series is 639

Answer 2) -

246 ⇒ 2 + 4 = 6

356 ⇒ 3 + 5 = 8 (Sum of the 1st and 2nd digit should have been equal to 8 but here 6 is in the number)

426 ⇒ 4 + 2 = 6

527 ⇒ 5 + 2 = 7

639 ⇒ 6 + 3 = 9

The sum of the 1st and 2nd digit in all the numbers is equal to the 3rd digit of that number except 356. Because 3 + 5 equals to 8 but 6 is the 3rd digit in 356. So, 356 is the odd number in the given numbers.

Answer.

Answer 2

Ans

2 + 4 + 6 = 12
3 + 5 + 6 = 14
4 + 2 + 6 = 12
5 + 2 + 7 = 14
6 + 3 + 9 = 18

The sum of given numbers are repeated atleast once,but 639 sum is not repeated