# Rounding + inverse relationship - practice problems

#### Number of problems found: 8

- Mushroom risotto

630g of rice is needed to prepare mushroom risotto for four people. How many boxes of 500g rice do you have to buy to prepare risotto for 17 people? - A truck 2

A truck leaves home with building materials and makes a return trip every six days. To deliver all the materials, you need eight truck trips every month. How many trucks do you need? - Seven workers

Seven workers clear the glade in 22 hours. How many workers would need to be done in 8 hours? - The alley

The alley was planted that 490 trees 6 meters away. How many trees would be planted if the distance was 7.5 m? - Wood harvesting

The harvested wood is bundled from the forest to a sawmill. The driver makes the journey four times a day, and the work takes him 8 days. How many times would he have to go daily to get the job done 2 days earlier? - Loading car

The car was loaded with 78 boxes weighing 19 kg. How many 25kg boxes can it load if the total weight is the same? - Coke

From one ton of coal is produced 772 kg of coke for iron production. How many wagons of coal by 13 tonnes per day is needed for the blast furnace, which has a daily consumption of 1020 tons of coke? - Excavation

Mr. Billy calculated that excavation for a water connection digs for 12 days. His friend would take 10 days. Billy worked 3 days alone. Then his friend came to help and started on the other end. On what day since the beginning of the excavation they met?

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Do you want to round the number? Rounding - practice problems. Inverse relationship - practice problems.