At a college football game, `4/5` of the seats in the lower deck of the stadium were sold. If `1/4` of all the seating in the stadium is located in the lower deck, and if `2/3` of all the seats in the stadium were sold, what fraction of the unsold seats in the stadium was in the lower deck?

At a college football game, 4/5 of the seats in the lower deck of the stadium were sold. If 1/4 of all the seating in the stadium is located in the lower deck, and if 2/3 of all the seats in the stadium were sold, then what fraction of the unsold seats in the stadium was in the lower deck ?

World's largest field hockey stadium based on the seating capacity is located in which Country ?

Study the given information carefully and answer the questions that follow. The table given below shows the capacity of 5 buses (A, B, C, D, E) and the percentage of seats that were filled out of the total seating capacity of the buses. Some of the data is missing and is denoted as N/A A) The total number fo vacant seats in all the 5 nuses together were 40 B) The number of seats in buses D and E together were 65 What is the ratio of the number of filled seats of bus B and the vacant seats of bus A?

The Indian cricket team with eleven players, the team manager, the physiotherapist and two umpires are to travel from the hotel where they are staying to the stadium where the test match is to be played. Four of them residing in the same town own cars, each a four seater which they will drive themselves. The bus which was to pick them up failed to arrive in time after leaving the opposite team at the stadium. In how many ways can they be seated in the cars ? In how many ways can they travel by these cars so as to reach in time, if the seating arrangement in each car is immaterial and all the cars reach the stadium by the same route.

The pH of water smaple collected from a river was found to be acidic in the range of 3.5-4.5, on the banks of the river were several factories that were discharging effluents into the river. The effluents of which one of the following factories is the most cause for lowering the pH of river water ?