Question

Four pairs of numbers have been given , out of which three are alike in some manner , while one isdifferent . Choose out the oddone . Ans . 31 - 41 73 - 79 83 - 97 61 - 71​

Answer 1

Step-by-step explanation:

83 -97 is odd one out

as,31-41= -10

73- 79= -6

61 - 71 = -10

but, 83 - 97= -14

Answer 2

Given:

Four pairs of numbers:

31 - 41, 73 - 79, 83 - 97 and 61 - 71​

To find:

Odd one out

Solution:

Finding the similarity amongst the numbers-

We see that the difference lies in the number of prime numbers.

31 - 41- one prime number-37

73 - 79- there is no prime number in this range

83 - 97- one prime number 89

61 - 71- one prime number 67

The odd one out is 73-79.