Quantitative Aptitude - Arithmetic Ability Questions

P and Q can do a project in 20 and 12 days respectively. In how many days can they complete 40% of the project if they work together?

In simple interest rate per annum a certain sum amounts to Rs. 5,182 in 2 years and Rs. 5,832 in 3 years. The principal in rupees is

A man covered a certain distance by a train at the speed of 40 km/hr and covers the same distance back by walking at the speed of 8 km/hr. Ifthe whole journey took 12 hours, then what is the one side distance (in km)?

If one angle of a triangle is equal to half the sum of the other two equal angles, then the triangle is

A solid hemisphere has radius 14 cm. It is melted to form a cylinder such that the ratio of its curved surface area and total surface area is 2 : 3. What is the radius (in cm) of its base?

Two numbers are 50% and 90% lesser than a third number. By how much percent is the second number to be enhanced to make it equal to the first number?

If Cot θ = 21/20, then what is the value of Cosec θ?

54% of 4000 is