Question

The average age of a b and c is 40 years.if the average age of b is (9/10) of this average,what is the average age of a and c together?

Answer 1

the average age is same of b 9/10

Answer 2

Answer:

58.65

Step-by-step explanation:

(a+b+c)/3=40(given)

a/3+b/3+c/3=40

a/3+b/3+c/3=40

b/3=(9/10)=>0.9(given)

(a+c)/3=40-0.9

(a+c)/3=39.1

a+c=117.3(39.1*3)

(a+c)/2=58.65