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tamaranim1 [39]
3 years ago
7

The mean mass of four women is 60 kg.

Mathematics
2 answers:
evablogger [386]3 years ago
6 0

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

Eddi Din [679]3 years ago
3 0

Okay so, 60 x 4 = 240

240 + 70 = 310

310 / 5 = Mean of 62

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