Question

the A.M of 10 numbers is 20 and A.M of 30 numbers is 60 then find A.M of the combined data​

Answer 1

Step-by-step explanation:

Let the sum of numbers of first data be 'x' and second data be 'y', then

10

x

=20

⇒ x=200

And,

30

y

=60

⇒ y=1800

∴ A.M. of combined data =

10+30

x+y

=

40

1800+200

=50

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