Find the ODD one out from the given options.

Correct option is B

176:
First digit: 1
Last digit: 6
Sum: 1+6=7
Second digit: 7
This satisfies the condition.
168:
First digit: 1
Last digit: 8
Sum: 1+8=9
Second digit: 6
This does not satisfy the condition.
154:
First digit: 1
Last digit: 4
Sum: 1+4=5
Second digit: 5
This satisfies the condition.
198:
First digit: 1
Last digit: 8
Sum: 1+8=9
Second digit: 9
This satisfies the condition.
Conclusion:
The number 168 does not satisfy the condition that the sum of the first and last digit equals the second digit.
Correct answer: (b) 168.