Ray spent 32hrs in all to read a novel from November 22 to 25. If he read M hrs on November 22, and in the following days he read 2 more hrs every day than the day before. How long did he read on November 24th? Use the variable M to solve.
Let x be the number of hours Ray read on November 24th.
On November 23rd Ray read M + 2 hours.
On November 25th Ray read M + 2 + 2 = M + 4 hours.
In total Ray read M + M + 2 + M + 4 = 3M + 6 hours.
Thus 3M + 6 = 32.
Thus 3M = 26.
Thus M = <<8=8>>8.
Thus Ray read 8 + 2 = <<8+2=10>>10 hours on November 24th. Answer: \boxed{10}.