Four options have been given out of which three are alike in some manner, while one is different. Choose the odd one.
- A135
- B54
- C72
- D83
Solution & Step-by-step Explanation
Let's test the numbers for basic arithmetic properties like divisibility:
Sum of digits of 135=1+3+5=9 (Divisible by 9)
Sum of digits of 54=5+4=9 (Divisible by 9)
Sum of digits of 72=7+2=9 (Divisible by 9)
Sum of digits of 83=8+3=11 (Not divisible by 9)
Since 135, 54, and 72 are all perfectly divisible by 9, while 83 is not, 83 is the odd one out.
Sum of digits of 135=1+3+5=9 (Divisible by 9)
Sum of digits of 54=5+4=9 (Divisible by 9)
Sum of digits of 72=7+2=9 (Divisible by 9)
Sum of digits of 83=8+3=11 (Not divisible by 9)
Since 135, 54, and 72 are all perfectly divisible by 9, while 83 is not, 83 is the odd one out.