Question 332024
The average age of the boys in a school is 14 years 6 months 
and average age of the girls in that school is 14 years. 
If there are twice as many boys as girls then find the average age of the whole school. 
:
av = {{{(2(14.5)+14)/3}}}
av = {{{(29+14)/3}}}
av = {{{(43)/3}}}
av = 14{{{1/3}}}; 14 yrs 4 months