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
Except option 3
Same logic is followed that is subtraction 20 in previous number :
(92 -72 -52) = 92 , (92 - 20 = 72) , (72 - 20 = 52 )
(76 -56 -36) = 76 , (76 - 20 = 56) , (56 - 20 = 36 )
(98 -78 -56) = 98 , (98 - 20 = 78) , (78 - 22 = 56 ) which is odd
(88 -68 -48) = 88 , (88 - 20 = 68) , (68 - 20 = 48 )