the mean of 12 numbers is 24. if one more number is included ,the new mean is 25 . find the included number. help me someone it's my exam!
Answers
Answered by
0
Answer:
37
Step-by-step explanation:
Find the total of the 12 numbers:
Mean = 24
Sum = 12 x 24 = 288
Find the total of the 13 numbers:
Mean = 25
Sum = 13 x 25 = 325
Find the included number:
NUmber = 325 - 288 = 37
Answer: 37
sakurabomb:
thanks a lot!
Answered by
0
12 numbers be x x/12=24
x=24x 12
x=288
if 9me more number is included =y
y/13=25
y=13x25
y=325
y-x=325-288
37
the include number is 37
I hope it will help u
mark as brain list and get 3 points
x=24x 12
x=288
if 9me more number is included =y
y/13=25
y=13x25
y=325
y-x=325-288
37
the include number is 37
I hope it will help u
mark as brain list and get 3 points
Similar questions