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)
Answer & explanation
Correct answer: option 3
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