Question

concrete is made from sand and cement.20 kg of concrete contains 15 kg of sand. find the ratio of sand to cement in its simplest form.

Answer 1

Answer:

3:1

Step-by-step explanation:

Sand = 15kg

Cement = x

Concrete = 20kg

15+x=20

x=20-15

x=5kg

Ratio of sand to cement is 15:5

Simplest form = 3:1

Answer 2

Step-by-step explanation:

Total amount of concrete = 20 kg

Amount of sand = 15 kg

Therefore amount of cement = 20 - 15 = 5 kg.

Ratio = Sand / Cement

or,

$= \frac{15}{5} = \frac{3}{1}$

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