A man crosses a street 600 m. long in 5 minutes.  His speed in kilometers per hour is :

A sum amounts to Rs. 1352 in 2 years at 4%  compound interest.  The sum is

A speed of 6 m/sec  is the same as :

Rs. 800 at 5% per annum compound interest amount to Rs. 882 in 

The simple interest  on Rs. 500 for 6 years at 5% is _______.

The price of an article is cut by 10 %. To restore it to the former value, the new price must be increased by 

The principal  and the interest put together is known as _____.

If X : Y = 3 : 7, Y : Z = 5 : 2 then X : Y : Z is

A can do a piece of work in 30 days while  B can do it in 40 days.  A and B  working together can do it in

Profit percentage  =