Quantitative Aptitude - Arithmetic Ability Questions

Find the number that is as much greater than 49 as is less than 95.

The average of 100 items was found to be 30 . If at the time of calculation , two items were wrongly taken as 32 and 12 instead of 23 and 11 , then the correct average is

Curved surface area of a cylinder is 528 sq cm. If circumference of its base is 44 cm, find the height of the cylinder?

If a - b = -5 and a2+b2=73, then find ab.

If the compound interest for the 3rd and 4th year on a certain principal is Rs 125 and Rs 135 respectively, what is the rate of interest (in %)?

If the value of a company stock drops from Rs. 25 per share to Rs. 21 per share, the percentage decrease per share is

What will be the net discount percentage of three successive discounts of 20%, 10% and 30%?

A boat goes 8 km upstream and 12 km downstream in 7hours. It goes 9 km upstream and 18 km downstream in 9 hours. What is the speed (in km/h) of the boat in still water?