Question

The average of 6 numbers is 30. If the average of first four is 25 and that of last three is 35,find the fourth number ? pls answer with explanation​

Answer 1

Answer:

I don't know but 4 is 15

Step-by-step explanation:

15

Answer 2

Answer:

sum of 6 numbers =60 x30 =180

sum of first 4 numbers = 4x25 =100

sum of last 3 numbers 3x35 =105

forth number  = (100+105)-180

                     =25

Step-by-step explanation: