For concreatting a tower cement, sand, stones are in the ratio 1:2:4 For 144kg sand.. What amount of cement is required?

Question

For concreatting a tower cement, sand, stones are in the ratio 1:2:4 For 144kg sand.. What amount of cement is required?

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Latifah 3 years 2021-09-02T07:15:12+00:00 1 Answers 0 views 0

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  1. Farah
    0
    2021-09-02T07:16:56+00:00
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    Answer:

    72 kg

    Step-by-step explanation:

    For concreatting a tower cement, sand, stones are in the ratio 1:2:4 For 144kg sand.. What amount of cement is required?

    We are given the ratio

    cement: sand:stones

    = 1:2:4

    The sum of proportion =

    1 + 2 + 4 = 7

    We are given the kg of sand = 144kg

    Step 1

    We find the total kg of cement, sand and stones = x

    Using the proportion of sand,

    2/7 of x = 144kg

    2/7 × x = 144kg

    2x/7 = 144kg

    Cross Multiply

    2x = 7 × 144kg

    x = 7 × 144kg/2

    x = 504kg

    Therefore the total kg of cement, sand and stone = 504kg

    Step 2

    The amount of cement required is calculated as:

    1/7 × 504 kg = 72 kg

    Therefore, 72kg of cement is required.

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