Let us discuss Quantitative Aptitude questions and various approaches to solve them quickly.
QA is the most important section in any competitive exam through which we can get good score with high accuracy. Practice reduces calculation time. Lets solve as many models as possible.
A conical flask is full of water. The flask has base radius r and height h. This water is poured into a cylindrical flask of base radius M. The height of the water in the cylindrical flask is
A and B can together complete a work in 3 days. They start together. But, after 2 days, B left the work. If the work is completed after 2 more days, B alone could do the work in
A sum of Rs 300 is divided among among P, Q and R in such a way that Q gets Rs 30 more than P and R gets Rs. 60 more than Q. The ratio of their share is
N is the foot of the perpendicular from a point P of a circle with radius 7 cm, on a diameter AB of the circle. If the length of the chord PB is 12 cm, the distance of the point N from the point B is
AB + CD = AAA, where AB and CD are two-digit numbers and AAA is a three digit number; A, B, C, and D are distinct positive integers. In the addition problem above, what is the value of C?
A tank is fitted with 8 pipes, some of which that fill the tank and others that empty the tank. Each of the pipes that fills the tank fills it in 8 hours, while each of those that empty the tank empties it in 6 hours. If all the pipes are kept open when the tank is full, it will take 6 hours to drain the tank. How many of these are fill pipes?