In the first 10 overs of a cricket game, the run rate was only 3.2. Whatshould be the run rate in the remaining 40 overs to reach the target of282 runs?A family consists of two grandparents, two parents and three grandchildren. The average age of the grandparents is 67 years, that of the parents is 35 years and that of the grandchildren is 6 years. What is the average age of the family?
