Mathematics: The mean mass of four women is 60 kg. another women has a mass of 70 kg work out the mean mass of five women

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The mean mass of four women is 60 kg. another women

anna2894

11.03.2022

$Mean\;Mass\;of\;Four\;Women = \frac{Sum\;of\;Masses\;of\;Four\;Women}{4}$

Given Mean Mass of Four Women = 60

$\implies \frac{Sum\;of\;Masses\;of\;Four\;Women}{4} = 60\\ \\\implies Sum\;of\;Masses\;of\;Four\;Women = 60\times4 = 240$

Given the Mass of Fifth Woman = 70 kg

$Mean\;Mass\;of\;Five\;Women = \frac{(Sum\;of\;Masses\;of\;Four\;Women) + (Mass\;of\;Fifth\;Woman)}{5}$

$\implies Mean\;Mass\;of\;Five\;Women = \frac{240 + 70}{5} = \frac{310}{5} = 62\;Kg$

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allisonchorath6971

26.02.2021

Step-by-step explanation:

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