SOLUTION: there are 12 boys and 12 girls in a science class. if 6 boys can read 6 science journals in 6 weeks and 4 girls can read 4 science journals in 4 weeks, how many science journals ca

Algebra ->  Equations -> SOLUTION: there are 12 boys and 12 girls in a science class. if 6 boys can read 6 science journals in 6 weeks and 4 girls can read 4 science journals in 4 weeks, how many science journals ca      Log On


   

Question 604541: there are 12 boys and 12 girls in a science class. if 6 boys can read 6 science journals in 6 weeks and 4 girls can read 4 science journals in 4 weeks, how many science journals can the entire class read in 12 weeks?
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
there are 12 boys and 12 girls in a science class.
if 6 boys can read 6 science journals in 6 weeks and 4 girls can read 4 science journals in 4 weeks, how many science journals can the entire class read in 12 weeks?
:
Find how many boy weeks required to read 1 journal
%286%2A6%29%2F6 = 6 boy-weeks per journal
:
Find how many girl weeks required to read 1 journal
%284%2A4%29%2F4 = 4 girl-weeks per journal
:
"how many science journals can the entire class read in 12 weeks?"
boys: %2812%2A12%29%2F6 = 24 journals
girls %2812%2A12%29%2F4 = 36 journals
-------------------------------------
Class total: = 60 journals