Try to understand the problem and take everything step by step
Equation A. 4(t-6)=3t+9; 4t-24=3t+9; t-24=9; t=9+24; t=33;
Answer: He read 40% of the total time.
Step-by-step explanation:
As per given,
Total time he spent = 2 +1+2 = 5 hours
Number of hours he spent on reading = 2 hours
The percent of the total time he read = 

i.e. The percent of the total time he read = 40%
Hence, he read 40% of the total time.
Answer:
Recursive algorithms call itself with simpler or smaller input values. They can be used to solve large problems by using the solutions to minor parts of the problem, these minor problems are then further broken down to solvable cases.
Given the input as a sequence;
max(
if
return 
else

if
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return 
else return 