Question

the mean weight of 9 students is 25 Kg if one more students is joint in the group is alerted then find the weight of the 10 student ​

Answer 1

Step-by-step explanation:

$\frac{25}{9} = 2.77 \: for \: 1 \: student$

for 10 student = 10 *2.77

= 27.7kg