3. A bedroom wall is 3m long and 2m high. What is the total area of the wall? A can of paint will cover 10m². How many cans are ne

Question

3. A bedroom wall is 3m long and 2m high. What is the total area of the wall? A can of paint will cover 10m². How many cans are needed if each wall needs 2 coats of paint?​

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Thu Nguyệt 1 month 2022-12-21T09:33:25+00:00 1 Answer 0 views 0

Answer ( 1 )

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    2022-12-21T09:34:45+00:00
    Total area of wall = 24 m² and the number of cans of paint required is 4.8 cans

    How to solve

    Given data
    length = 3 m
    width = 2 m
    a can of paint will cover 10 m²
    each wall needs 2 coats of paint
    Area of a wall
    = 3 * 2
    = 6 m²
    Assuming 4 walls, total area
    4 * 6 = 24 m²
    paints required:
    since each wall needs 2 coats of paints then 1 can of paint will cover 5 m². for each wall which is 6 m² we have:
    1 can = 5 m²
      ?  =   6 m²
    let x represent the number of cans for 6 m² then for x, we cross multiply
    x = 6/5
    x = 1.2 cans
    for 4 walls we have
    4 * 1.2 = 4.8 cans
    Read more on areas here: https://brainly.com/question/25292087
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