Quantitative Aptitude - Arithmetic Ability Questions

A solid sphere has a radius 21 cm. It is melted to form a cube. 20% material is wasted in this process. The cube is melted to form hemisphere. In this process 20% material is wasted. The hemisphere is melted to form two spheres of equal radius. 20% material was also wasted in this process. What is the radius (in cm) of each new sphere?

The sum of money that will yield Rs. 60 as simple interest at 6% per annum in 5 years is

Dev lent Rs. 8000 to Jairam for 17 years and Rs. 4700 to Karnik for 16 years on simple interest at the same rate of interest and received Rs. 21120 in all from both of them as interest. The rate of interest per annum is:

A shopkeeper by selling 5 items, earns a profit equal to the selling price of 1 item. What is his profit percentage?

Ehsaan is twice as good a worker as Kamal and together they finish a piece of work in 29 days. In how many days will Kamal, working alone, finish the work?

What is the value of 10.2+10.02+10.002+... upto 9 terms

Select the odd letters from the given alternatives.

P can make a table in 16 days while Q can make it in 20 days. Q started the work and did that work for 5 days. In how many days P can complete the remaining work?