Question

if the average of four number is 18.if the average of three no is 14 find the fourth number
​

Answer 1

Answer:

4

...........

.....

......

Answer 2

Answer:

30

Step-by-step explanation:

Average of four Nos = sum of four nos/4

Average of three Nos = sum of three nos/ 3

Now ATQ

Average of three digits is given i.e. 14

Average of four  digits is given i.e. 18

NOW, Let be the sum of three nos be x

Then ,

x/3=14

x=14*3=42

NOW, Let be the sum of  four nos also  be x

Then ,

x/4=18

x=18*4= 72

NOW ATQ,

fourth no = AVERAGE OF FOUR NOS -  AVERAGE OF THREE NOS

i.e. 4th no = 72-42=30

Hope it will help u

Happy friendship day

Please mark my answer as Brainliest