Question

average age of father and four sons is 20 years.the average age of four sons is 11 years.what is the age of father.​

Answer 1

Step-by-step explanation:

which one of the following is the source region for the formation of air mass?

1.The Equatorial Forest

2.the siberian plain

3.The Himalayas

4.the deccan plateau

(Clear explanation needed)