Please help me with question 76.
The greatest power of 2 that divides 63! + 64! + 65! + 66! + 67! + 68! + 69! + 70! without leaving a remainder?
  If 12 men or 15 women or 18 boys can do a piece of work
in 15 days of 8 hours each, find how many men assisted by
5 women and 6 boys will finish the same work in 16 days
of 9 hours each
Is it possible to calculate no solutions for 2x+3y>= 6. If yes then how?
A wheel of a car 70 cm in diameter makes 300 revolutions per minute. Find the speed of the car in km/hr.
There are three drain pipes P1, P2 and P3, all of equal capacity, fitted to a cylindrical tank of height 6 metres. P1 is fitted at the bottom of the tank, while P3 is fitted at a height of 5 m above P1, and P2 is fitted in between P3 and P1. P1 alone can empty the full tank in T minutes and if all the three pipes are in operation, the full tank can be emptied in minutes. What is the height (above P1) at which P2 is fitted to the tank?
I want to know the approach for the questionÂ
How many two digit numbers have their squares as 1 more than a multiple of 24?
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