A factory is supplied with raw materials by rail. Due to the renovation of the track, the time of passing the goods from the warehouse to the factory increased by . How much did the average speed of carriage on the delivery route decrease?
A certain amount of money was put into a bank account for an annual deposit of per year. After a year the bank paid a tax in the amount of zlotys from the gained interests. What amount was placed on the deposit if the interest tax amounted to ?
The interest rate on deposits in a certain bank initially equaled per year but then it was decreased by . By how many percentage points has the interest rate decreased?
The interest rate on deposits in a certain bank initially equaled per year but then it was increased by percentage point. What was the percentage increase of the interest rate?
Interest on two construction loans of the total value of zlotys amounts to zlotys a year with the interest rate on one of the loans being and the other . Calculate the amount of each of these loans.
zlotys of interest rate loan and zlotys of interest rate loan
zlotys of interest rate loan and zlotys of interest rate loan
zlotys of interest rate loan and zlotys of interest rate loan
zlotys of interest rate loan and zlotys of interest rate loan