Quantitative Aptitude - Arithmetic Ability Questions

A dealer sells a machine having marked price as Rs 3840 at a discount of 20%. What is the selling price (in Rs) of the machine?

If the number 583_437 is completely divisible by 9, then the smallest whole number in the place of the blank digit will be

The marked price of a book is Rs 4200. The shopkeeper gives two successive discounts of 25% and y% to the customer. If the customer pays Rs 2898 for the book, then what is the value (in percentage) of y?

The ratio of the curved surface area and total surface area of a right circular cylinder is 2 : 5. If the total surface area is 3080 cm2, then what is the volume (in cm3) of the cylinder?

A car travels a certain distance at 24 km/h and comes back at 36 km/h. Find the average speed for total journey.

A wooden bowl is in shape of a hollow hemisphere of internal radius 7 cm and thickness 1 cm. What is the total surface area (in sq.cm) of the bowl? (Take:  = 22/7)

What is the sum of the first 9 terms of an arithmetic progression if the first term is 7 and last term is 55?

A train 240 meters in length crosses a telegraph post in 16 seconds. The speed of the train is?