Question

te average of 7 number is 50 .The average of first three of them is40 ,while the average of last three is 60 . what must be the remining number​

Answer 1

Answer:

50

Step-by-step explanation:

sum of the seven numbers is

$7 \times 50 = 350$

sum of first three numbers is

$3 \times 40 = 120$

sum of last three numbers is

$3 \times 60 = 180$

Remaining number is

$350 - (120 + 180) = 50$