Determine the check digit that should be appended to the ISBN 0-7167-6531.
A) 4
B) 5
C) 6
D) 7

Question

Quizplus · Accepted Answer

The check digit for an ISBN-10 is calculated by multiplying each digit by its position (starting with 1), summing these products, and taking the modulus of 11. For the ISBN 0-7167-6531, the calculation is as follows: (0*1 + 7*2 + 1*3 + 6*4 + 7*5 + 6*6 + 5*7 + 3*8 + 1*9) = 176. The sum, 176, when divided by 11, leaves a remainder of 4. Therefore, the check digit is 4.

Determine the Check Digit That Should Be Appended to the ISBN