Permute the letters in the english alphabet forming a long string of letters (of length 26, each letter is used exactly once.) how many different such permutation does not contain any of the words great, job or quiz. (hint: find the total number of such permutations minus the ones that do contain at least one of those words using inclusion-exclusion principle.) g

Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.