The Arithmatic mean of 4 number is 15. The Arithmetic mean of another is 12 what is the arithmatic mean of combined 10 number.
Answers
Answered by
2
Answer:
13.2
Step-by-step explanation:
sum of first 4 no=4×15=60
sum of next 6 no=6×12=72
sum of all 10 no=132
arithmetic mean of ten no=132÷10=13.2
Similar questions