Average Practice Test 1

Total pages read in the afternoon and evening = 100 + 100 = 200 pages
Time taken in the afternoon $=\frac{100}{60}=\frac{5}{3}$ hours
Time taken in the evening $=\frac{100}{40}=\frac{5}{2}$ hours
Average rate of reading per hour
$=\frac{\mathrm{Total}\mathrm{pages}}{\mathrm{Total}\mathrm{time}\mathrm{taken}}$ $=\frac{200}{\frac{5}{3}+\frac{5}{2}}$
$=\frac{200\times 6}{10+15}=\frac{200\times 6}{25}$
= 48 pages/hours