Quantitative Aptitude - Arithmetic Ability Questions

Instead of multiplying by 25, a student multiplies that number by 52 and gets 324 more than correct answer. Then that number is

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?

The difference between simple and compound interests compounded annually on a certain sum of money for 2 years at 16% per annum is Rs 320. What is the value of given sum (in Rs)?

A sum of money (P) doubles in 10 years. How much would it be in 20 years at the same rate of simple interest?

If the selling price of an article is doubled, then its loss percentage gets converted into the equal profit percentage. What is the loss percentage?

The simplified value of 3-212-18 - 13 × 27 - 12 x 273 is closest to

Simplify (b5x2a3z4)*(b3x2a4z5) / (a2b3z2)

x, y and z are real numbers. If x3 + y3 + z3 = 13, x + y + z = 1 and xyz = 1, then what is the value of xy + yz + zx?