The body of a person who weighs 50 kg mg contains round 2 * 10/2 grams of sodium chloride how much sodium chloride is contained in the bodies of 1.8 * 10/3 people who each way 5…

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asked May 25, 2023 227k views

1 Answer

Loonyuni · Answer 1 · 2023-05-31T16:07:07+0000

We will use the ratio method to solve the question

∵ 50 kg contains 2 x 10^2 grams of sodium chloride

∵ We need to find the amount of sodium chloride in 1.8 x 10^3 people

who weigh 50 kg

At first, we must find the weight of 1.8 x 10^3 people

$\because1.8*10^3*50=90*10^3=9*10^4\operatorname{kg}$

Now we will use the ratio method

→ kg: gm

→ 50. : 2 x 10^2

→ 9 x 10^4 : m

→ By using cross multiplication

$\begin{gathered} 50* m=9*10^4*2*10^2 \\ 50m=18*10^(4+2) \\ 50m=18*10^6 \end{gathered}$

Divide both sides by 50 to find m

$\begin{gathered} (50m)/(50)=(180)/(50)*10^5 \\ m=3.6*10^5 \end{gathered}$

The answer is A