Question

What is the The average age of a man and his son is 40 yr. The ratio of their ages is 7 : 3, respectively. What is the man’s age?

Answer 1

Answer:

according to me man's age is 56 years

Step-by-step explanation:

sum of ratio parts - 7+3=10

let sum of their ages be 10 x

average age =( age of man + age of son)÷2

= 10x÷2

40= 10 x ÷ 2

40= 5x

40÷5= x

8= x

this man's age = 8×7=56 years