Quantitative Aptitude - Arithmetic Ability Questions

The curved surface area and the diameter of a right circular cylinder are 660 sq.cm and 21 cm respectively. Find its height (in cm).

A boat covers 143 km upstream in 13 hours and the same distance downstream in 11 hours. What is the speed (in km/hr) of the boat in still water?

What is the reflection of the point (2, -3.5) in the y-axis?

Find the area (in cm²) of a semi-circle of radius 35 cm.

If the equation 4x + 3y + 5 = 0 and 6x - ky - 7 = 0 have no solution, then the value of k is

The ratio of two numbers is 5 : 6. If their product is 1470, then what is the sum of both the numbers?

The cash difference between the selling price of an article at a profit of 2% and 18% is Rs. 3. The ratio of two selling prices is

What is the value of x3-1x3+8 when 8x-8x-16=0 ?