A shopkeeper had 2000 kgs of rice. He sold a part of it at 11% profit and the rest at 17% profit, so that he made a total profit 15.2%. How much rice (in kgs) did he sell at 17% profit?

If the average marks obtained by Balu, Benjamin and Babur is 80 and the average marks of Benjamin and Babur is 83, find marks obtained by Balu.

The difference between a discount of 30% on ₹ 2,000 and two successive discounts of 25% and 5% on the same amount is 

A man spends 80% of his income. His income is increased by 20% and he increase his expenditure by 10%. His saving are increased by:

x = y = 333 and z = 334, then value of x³ + y³ + z³ – 3xyz is 

A merchant sells a radio at 10 % profit if he bought 10% less and sold it Rs.132 less then he got 10% profit. Find the cost price of radio?

The speed of the current is 5 km / hour. A motorboat goes 10 km upstream and back again to the starting point in 50 minutes. The speed (in km / hour) of the motorboat in still water is: