Quantitative Aptitude - Arithmetic Ability Questions

If x - 2y = 2 and 3x + y = 20, then the value of (x,y) is

The mean of the data 2, 9, 9, 3, 6, 9, 4 is

Find a two digit number which is exactly three times the product of its digits?

In what ratio does the point T(x, 0) divide the segment joining the points S(5, 1) and U(-1, -2)?

Rahul can complete a work in 18 days and Sonu can complete the same work in 15 days. If both together work for 5 days, then what part of total work is left?

The number of students in a class is increased by 20% and the number now becomes 66. Initially the number was

A right circular cylinder has height as 18 cm and radius as 7 cm. The cylinder is cut in three equal parts (by 2 cuts parallel to base). What is the percentage increase in total surface area?

13 years ago Ram was twice as old as Sunny. Three years from now Sunny's age will be 3/5 of Ram's age. What is Ram's current age?