Somone help 300 children participated in a painting contest. 120 of them were boys. Find the ratio of the number of boys to the number of girls

2:3

Step-by-step explanation:

There were 300 children in total. Of those 300, 120 are boys. To find out the number of girls, subtract 120 from 300 to get 180.

300 - 120 = 180 girls

Total: 300 || Boys: 120 || Girls: 180

Next, simply imput the numbers into your ratio.

120:180

Then, to get the shortest answer, simplify the two numbers by dividing them.

2 : 3

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step-by-step explanation:

answer:

total cost for tiles and paints is $924.  

step-by-step explanation:

we have been given that a community hall is in the shape of a cuboid. the hall is 40m long 15m high and 3m wide.

the paint will be required for 4 walls and ceiling.

let us find area of walls and ceiling.

therefore, the area of walls and ceiling is 1410 square meters.

given: cost for 10 litre of paint is $10 and 10 litre paint covers 25 square meter. therefore,

therefore, the total painting cost is $564.

tiles will be required for floor. let us find the area of floor.

given: 1m squared floor tiles costs $3. so,

therefore, the total tiles cost is $360.

now let us find combined total cost of tiles and paint.

therefore, the combined total cost of tiles and paint is $924.