15.

(a) How many bits are available for storing information in a 49 × 49 Version 8 QR code?

This version has four alignment patterns that do not intersect a timing pattern and two that do intersect a timing pattern. It also has two 18-bit version information areas.

(b) If the overhead for the mode, character count, and Level M error correction is 37%, how many characters can be stored in the code?