If the cost price of 63 articles is equal to the selling price of 54 articles, then what is the percentage gain or loss?
16\( \frac{2}{3} \)% loss
15\( \frac{1}{3} \)% loss
16\( \frac{2}{3} \)% gain
15\( \frac{1}{3} \)% gain
Six friends L, M, N, O, P and Q live on six different floors of the same building. The lowermost floor in the building is numbered 1, the floor above it, number 2 and so on till the topmost floor is numbered 6. Only O lives on the floor between the floors of M and Q. Only N lives on the floor between the floors of L and P. Q lives on one of the floors above the floor of L. On which floor does O live?
In the given figures (figures drawn are not to scale), by which of the following similarity criteria ΔPQR is similar to ΔXYZ, where S = side and A = Angle?
If 2 and 5 are the roots of a quadratic equation, then the quadratic equation is given by:
x2 + 3x + 7 = 0
x2 + 7x + 10 = 0
2x2+ 7x + 10 = 0
x2- 7x + 10 = 0
There are three pipes K, L and M. Pipe K can fill a tank in 45 minutes and pipe L can fill the same tank in one hour. Pipe M can empty the same tank, when filled, in 1 hour 45 minutes. If all three pipes are opened together when the tank is empty, then the tank will be filled in:
24 \( \frac{3}{37} \) minutes
34 \( \frac{2}{37} \) minutes
44 \( \frac{5}{37} \) minutes
54 \( \frac{9}{37} \)) minutes