Question

the mean of 8 numbers is 45 and the mean of other 12 numbers is 55. Find the mean of all the numbers taken together​

Answer 1

Answer:

50

Step-by-step explanation:

mean of 8 no.'s = 45.

mean of 12 no.s= 55

by combined mean property ,

45+ 55/2= 100/2

= 50