Subah Jaldi Kaise Uthe? 1 Hour Rule

A man walks a certain distance with certain speed.If he walks 1/2km an hour faster,he takes 1 hour less.But,if he walks 1km an hour slower,he takes 3 more hours.Find the distance covered by the man and his original rate of walking.

Anuradha can do a piece of work in 6 hours. What part of the work can she do in 1 hour, in 5 hours, in 6 hours?

Four taps can individually fill a cistern of water in 1 hour, 2 hours, 3 hours and 6 hours respectively. If all the four taps are opened simultaneously, the cistern can be filled in how many minutes ?

Quantity 1: Number of hours in which A, B and C can complete the work if A, B and C alone can finish it in 25, 20 and 25 hours respectively. Quantity 2: Number of hours in which B can finish the work if A working alone finishes it in 20 hours while working together they finish it in 5 hours.

Social Studies Application: Remembering that 1AD came immediately after 1BC, while solving these problems take 1BC as –1 and 1AD as +1 Turks ruled Egypt in the year 1517 AD and Queen Nefertis ruled Egypt about 2900 years before the Turks ruled. In what year did she rule?