Question

I dont understand conjecture 7:30 7:55 8:20 8:45

Answer 1

conjecture here is nothing but the addition of 25 minutes in the previous time to get next time slot.

`\begin{gathered} \text{ So,} \\ 7\colon30+\text{ 25 =7:55} \\ 7\colon55\text{ +25 = 8:00+20 =8:20} \\ 8\colon20+\text{ 25 = 8:45} \\ 8\colon45+\text{ 25 =9:00+10 = 9:10} \\ 9\colon10\text{ + 25 = 9:35} \end{gathered}`