Quantitative Aptitude - Arithmetic Ability Questions

Three pipe P, Q and R can fill a tank in 12 minutes, 18 minutesand 24 minutes respectively. The pipe R is closed 12 minutesbefore the tank is filled. In what time the tank is full?

The sum of ages of 4 children born at intervals of 4 years each is 60. What is the age of the youngest child?

Average of 14 numbers is 32. If the average of last 5 numbers is 26, then what is the average of the remaining numbers?

24 men can do a piece of work in 17 days.How many men will be able to do it in 51 days ?

If two successive discounts of 50% and 10% are offered, then what is the net discount (in %)?

The height and the slant height of a right circular cone are 24 cm and 25 cm, respectively. Considering π as 22/7 , find the curved surface area of the said cone.

In what ratio is the segment joining the points (2,5) and (­6,­10) divided by the y­axis?

The ratio of the number of marbles that Joyee and Minati had was 5 : 8 while the ratio of the number of marbles that Jacob and Minati had was 7 : 12. What is the ratio of the number of marbles that Joyee and Jacob had?