Quantitative Ap...

A container contains 30 liters of alcohol. 3 liters of alcohol are taken out and replaced by an equal amount of water. The same process is repeated 2 times more. How much alcohol is left in the container now?

A, B, and C can do a work in 24, 16 and 12 days respectively. How many days will it take them to complete the work, if the three of them decide to work together?

The captain of a cricket team of 11 members is 26 years old and the wicket-keeper is 3 years older. If the ages of these two are excluded, the average age of the remaining players is one year less than the average age of the whole team. What is the average age of the team?

Ganesh and Bhima can complete a work in 6 days. If Ganesh alone can finish it in 10days, in how many days Bhima can complete the work?

If A = { x : x ∈ N,  0 < x < 6} and B = {x : x is a prime natural number, 0 < x < 10} Find A - B ?

Two numbers are in the ratio 7 : 11. If their HCF is 28, then sum of the two numbers is:

It takes 10 hours for a person to travel a distance. If he reduces his speed by 20%, then what is the percentage increase in the time taken to cover the same distance?

In the figure, ABC is a right angle triangle where F is the midpoint of side AB and D is the midpoint of side BC . What is the relation between AD, CF, and AC?