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Exercise 1

A beacon flashes its light every seconds, another every seconds, and a third every minute. At 6.30 pm the three flash simultaneously.

Find out the times when the three flash simultaneously again in the next five minutes.

Exercise 2

A businessman goes to Chicago every days for one day and another businessman every days, also for only one day. Today, both men are in Chicago.

Within how many days will the two businessmen be in Chicago again at the same time?

Exercise 3

What is the smallest number that when divided on separate occasions, , , , and , gives the remainder of in every case?

Exercise 4

There are differently sized casks of wine in a cellar whose capacities are: liters, liters, and liters. The owner of the cellar wants to package the wine in barrels with an equal amount of wine in each one. Calculate the maximum capacities of these barrels so that the owner can package equal amounts of wine in each cask, and determine the quantity of barrels he will need.

Exercise 5

The floor of a room that needs to be tiled is m long and m wide.

Determine the ideal size of the tiles and the number of the tiles needed, such that the number of tiles that are placed is minimal and none of them are to be cut. Keep in mind that all tiles are to be the same size.

Exercise 6

A trader wants to put apples and oranges into boxes. Each box is to contains an equal number of apples and an equal number of oranges and also the greatest number of each. Find the ideal number of oranges and apples for each box and the number of boxes needed.

Exercise 7

What is the size of the largest possible square tile that can fit an in a room m long and meters wide without being cut? How many tiles are needed?

Find more Maths tutors near me here on Superprof.

 

Solution of exercise 1

A beacon flashes its light every seconds, another every seconds, and a third every minute. At 6.30 pm the three flash simultaneously.

Find out the times when the three flash simultaneously again in the next five minutes.

 

Solution of exercise 2

A businessman goes to Chicago every days for one day and another businessman every days, also for only one day. Today, both men are in Chicago.

Within how many days will the two businessmen be in Chicago again at the same time?

Within 72 days.

 

Solution of exercise 3

What is the smallest number that when divided on separate occasions, , , , and , gives the remainder of in every case?

 

Solution of exercise 4

There are differently sized casks of wine in a cellar whose capacities are: liters, liters, and liters. The owner of the cellar wants to package the wine in barrels with an equal amount of wine in each one. Calculate the maximum capacities of these barrels so that the owner can package equal amounts of wine in each cask, and determine the quantity of barrels he will need.

The capacity of the barrels= liters

Number of barrels of C1 =

Number of barrels of C2 =

Number of barrels of C3 =

Number of barrels = = barrels.

 

Solution of exercise 5

The floor of a room that needs to be tiled is m long and m wide.

Determine the ideal size of the tiles and the number of the tiles needed, such that the number of tiles that are placed is minimal and none of them are to be cut. Keep in mind that all tiles are to be the same size.

dm²

 dm aside

dm 2

dm² : dm² = tiles

 

Solution of exercise 6

A trader wants to put apples and oranges into boxes. Each box is to contains an equal number of apples and an equal number of oranges and also the greatest number of each. Find the ideal number of oranges and apples for each box and the number of boxes needed.

oranges in each box.

Boxes of oranges =

Boxes of apples = 12,028/124 = 97

Boxes necessary =

 

Solution of exercise 7

What is the size of the largest possible square tile that can fit an in a room m long and meters wide without being cut? How many tiles are needed?

dm aside

dm²

dm²

dm² : dm² = tiles

 

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Emma

Emma

I am passionate about travelling and currently live and work in Paris. I like to spend my time reading, gardening, running, learning languages and exploring new places.