What is the difference in the number of students present at 3:00 PM and 12:00 PM?
Shiva, Sethupathi, and Murugan are friends and decide to spend their weekend in Bangalore. Shiva is from Hyderabad, Sethupathi hails from Coimbatore and Murugan is from Chennai. The duration of their journey is 8 hours, 6 hours, and 8 hours respectively. They plan on reaching to Bangalore by 8 pm but they reach Bangalore only by 9 pm. So, estimate the time when they started from their respective city. Consider they haven't stopped anywhere during their journey.
Arjun is in his higher secondary and studies hard to score good marks in his exam. He decides to increase his study hour duration by 2 hours. Currently, he studies from 4:00 pm - 8:00 pm (after an increase of two hours) Predict his earlier study plan considering the initial time remains the same.