Question

Q71. The average of 10 results is 40 and the average of other 40 results is 10. What is the average of all the results together?
O (A) 16
O (B) 25
O (C) 50
O (D) 8​

Answer 1

Answer:

Step-by-step explanation:

sum= x

x/10= 40

x=40x10= 400

sum=x

x/40=10

x=10x40=400

sum = 400 + 400= 800

number of observation = 40+10= 50

800/5= 160