Question

the am of 10 numbers is 10, the am of 15 numbers is 10, am of combined data is​

Answer 1

Answer:

20

Sum X / 10 = 10

Sum X = 10×10

Sum X = 100

sum Y / 15 = 10

sum Y = 15×10

Sum Y = 150

Am of combined data = (Sum X + Sum Y) / (10+15)

= (100+150) / (25)

= 250 / 25

= 10