Join 60,000+ competitive exam aspirants
If 1 is added to each odd digit and 2 is subtracted from each even digit in the number 4168327, what will be the difference of the digits which are second from the left and second from the right in the new number thus formed?
1
0
3
2 Question ID : 441009556975 Option 1 ID : 4410092183216 Option 2 ID : 4410092183217 Option 3 ID : 4410092183215 Option 4 ID : 4410092183214 Status : Answered Chosen Option : D
2 Question ID : 441009556975 Option 1 ID : 4410092183216 Option 2 ID : 4410092183217 Option 3 ID : 4410092183215 Option 4 ID : 4410092183214 Status : Answered Chosen Option : D
Identify only the relevant digits (2nd from left and 2nd from right) before transforming to save time, rather than transforming the entire sequence.
Identify only the relevant digits (2nd from left and 2nd from right) before transforming to save time, rather than transforming the entire sequence.
Mapping the original digits
The original number is 4 1 6 8 3 2 7. The second digit from the left is 1. The second digit from the right is 2.
Applying the rules
Rule: Add 1 to odd digits, subtract 2 from even digits. Digit 1 (odd) becomes 1 + 1 = 2. Digit 2 (even) becomes 2 - 2 = 0.
Calculating the difference
The new values are 2 and 0. The difference between the second digit from the left (2) and the second digit from the right (0) is 2 - 0 = 2.
A: 1 is incorrect because the result of the difference calculation is 2, not 1. B: 0 is incorrect because the digits 2 and 0 have a non-zero difference. D: 2 is the correct result of 2 - 0. Official key says C(3), but based on the provided number 4168327, the digits are 1 and 2, which transform to 2 and 0, yielding a difference of 2.
D is correct because the second digit from the left (1) becomes 2 and the second digit from the right (2) becomes 0, and the difference 2 - 0 equals 2.
When asked for specific positions in a digit transformation task, ignore all other digits to minimize calculation errors and save time.