## Task 1 - 150611

The People's Republic of Poland delivered a total of 132,000 tons of coal and 24,000 tons of coke from December 6, 1974 (first delivery day) to December 18, 1974 (last delivery day) by waterway to the capital of the GDR. The delivery was made on barges with a capacity of 600 tons each.

How many of these barge loads arrived in Berlin on average each day during the specified period (with Sundays counted as delivery days)?
Due to $132000+24000=156000$, the delivered total amount was 156000 tons. Due to $132000: 600=$ 220, $24000: 600=40$ and $220+40=260$ or: due to $156000: 600=260$, this amounted to a total of 260 barge loads.

Since from December 6 to December 18, 1974, there were a total of 13 delivery days, due to $260: 13=$ 20, on average 20 of these barge loads arrived daily from the People's Republic of Poland in Berlin.