SOLUTION: Average of 4 numbers is 60. Three numbers are 65,50 and 70. Find the fourth number.

Question 585095: Average of 4 numbers is 60. Three numbers are 65,50 and 70. Find the fourth number.
Found 2 solutions by richwmiller, josmiceli:
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
(65+50+70+x)/4=60
x=55
another way
60-5+10-10=55
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!

Multiply both sides by

check answer:

OK
RELATED QUESTIONS
The average of four numbers is 85. If three of the numbers are 79, 80 and 65, find the... (answered by mananth)
the average of 4 numbers is 50. three of the numbers are 40 57 and 51 what is the fourth... (answered by ReadingBoosters)
If the average of four numbers is 25, and three of the numbers are 24, what is the fourth (answered by oscargut)
The average of numbers are 8. So if three of the numbers are 4, 8, and 9 what is the... (answered by rfer)
The average of 4 numbers is 85. If three of the numbers are 76,78, and 81. What is the... (answered by TimothyLamb,Danielshinmath)
the average of four numbers is 638.4 the first four numbers are 216 159.8 and 301.25 (answered by edjones,orca)
the average of the first three numbers is double of the fourth number. if the average of... (answered by jsmallt9)
The average of four numbers is 67 three of these numbers are 67 87 72 what is the fourth... (answered by stanbon,macston)
the average of four numbers is 638.4 the first three numbers are 216,159.8,301.25. what... (answered by stanbon)