Select the odd group of numbers. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its 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)

(15-25-49)

The logic followed here is :

Ist number + 10  =  Second number and Second number +20 = IIIrd number

(19- 29 - 49)

(17-27-47)

(13-23-43)

Except option 3

15 + 10 = 25 and 25 +20 = 45 but 49 is given which is odd