Mark is injured so decides to spend more time reading.  He used to read 2 hours a day but increased that by 150%.  Before he read 100 pages a day.  How many pages does he read a week now?
His reading speed is 100/2=<T>divide(100, 2)=50.0 pages a day
He reads 2*1.5=<T>multiply(2, 1.5)=3.0 hours more now than before
So now he reads 2+3=<T>add(2, 3)=5 hours per day
That means he reads 5*50=<T>multiply(5, 50)=250 pages per day
So he reads 250*7=<T>multiply(250, 7)=1750 pages a week
