Quantitative Aptitude - Arithmetic Ability Questions

The radius and height of a solid cylinder are increased by 2% each. What will be the approximate percentage increase in volume?

A can do a work in 15 days and B in 20 days. If they work on it together for 6 days, then what fraction of work is left?

The effective annual rate of interest corresponding to a nominal rate of 7% per annum payable half­yearly is

If a + b = 17 and a - b = 9 then the value of (4a2 + 4b2) is,

The value of √0.0144 is

A factory buys 8 machines. 3 Machine­A, 4 Machine­B and rest Machine­C. Prices of the machines are Rs 45000, Rs 25000 and Rs 35000 respectively. Calculate the average cost (in Rs) of these machines?

The ratio of curved surface area of a right circular cylinder to the total area of its two bases is 2 : 1. If the total surface area of cylinder is 23100 cm2, then what is the volume (in cm3) of cylinder?

Alarms from 3 different clocks sound after every 2, 4 and 6 hours, respectively. If the clocks are startedat the same 6 time, how many times do the alarms ring together in 3 days?