Question

if C+R=10 , D+R=20 , D+C=24, then what is the velue of D+C+R = ?​

Answer 1

Answer:

Step-by-step explanation:

C + R  = 10  -------------(1)

D +  R  = 20 ------------ (2)

D + C  = 24---------------(3)

1 + 2 + 3

 2( C + D + R ) =  54

      C  +  D  +  R  = 27

C  + R  =  10 , Then,  D = 17

D  + R  = 20,  Then  C  = 7

D  +  C  =  24  , then R = 3