Question

average age of a and b is 30 that of B and C is 32 years and the average age of c and a is 34 years the age of C is​

Answer 1

a+b/2=30

a+b=60

b=60-a

c+a/2=34

c+a=68

a=68-c

b+c/2=32

b+c=64

c=64-b

inserting value of b

c=64-(60-a)

c=64-60+a

inserting value of a

c=4+68-c

c+c=72

2c=72

c=36

Answer 2

Answer:

Step-by-step explanation:

let the age of A, B, C are a, b, c

(a+b)/2 = 30

a+b = 60           equation- 1

similarly

b+c = 64           equation- 2

c+a = 68           equation- 3

adding equation- 1,2,3

a+b+b+c+c+a = 60+64+68

2a+2b+2c = 192

a+b+c = 96         equation- 4

put equation- 1 in equation- 4

60 + c = 96

c = 96 -60 = 36 years