Jerry plays Minecraft 1.18181818x more than Hayden. This means that 240 minutes is 1.18181818x more than the amount of time Hayden played. He played for about 44 minutes less than Jerry, so Hayden played for about 196 minutes.
If Trevon can read 16 pages every 7 minutes and he read for a total of 84 minutes, he would have read a total of 192 pages.