A thief escapes custody at 10 a.m. He runs at a speed of 40 km/h. The policeman starts chasing the thief at 11:30 a.m., starting from the point from where the thief escaped custody. The speed of the policeman is 60 km/h. At what time will he catch the thief?
David purchased an item and marked his price up by 10%. He sold the same item by giving a discount of 5% and he made a profit ₹12.87. What is the actual cost price of the item?
Pipe A can fill an empty cistern in 6 hours and pipe B can fill the same empty cistern in 8 hours. Both the pipes are opened simultaneously but after two hours, pipe A is closed. How many hours will B take to fill the remaining part of the cistern?
The sum of the simple interest and the compound interest on ₹5,600 at the same rate of interest per annum for two years is ₹2,061.36, when in the case of compound interest, it is compounded annually. What is the rate of interest per annum?
