Sand occupies 20% in the earthen mixture. How many kilograms of the mixture if the sand is 34 kg.

We take the mass of the earthen mixture as 100% and X kg, the mass of sand is 20% and 34 kg – it is known from the condition of the problem, we will compose and solve the proportion:

X kg – 100%,

34 kg – 20%.

X = (34 * 100): 20 = 3400: 20 = 170 (kg) – the mass of the earth mixture.

Answer: the mass of the earthen mixture is 170 kg.



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