i really dont have much idea about this but you probably can find help in Edulix - Premier Site for Scholars - 'Education Crowd-Sourced' . All the best
A tank can be filled in 10 hrs and it can be emptied in 7 hrs. If both the taps are kept open for the first hour and then the inlet is closed, how much time will it take to empty the tank?
Given a figure of a rectangular cuboid like above with the length as 8. And the diagonal length of the shaded part is given as 10. If the longest diagonal length of the cuboid is 19, then find the breadth and height of the cuboid?
A shop sells an item for 125 dollar and another shop sells an item for 75 dollar.
ColA: percentage gained over 125 dollar if the item is bought from the shop selling at 75 dollar.
ColB: 40%
125-75/75 = 66.67%
isnt it 125-27/125*100=40 % C ???