Here's a non-algebraic approach to the problem:
If Bobs current age were 8 then 8 years ago he would be zero, so he has to be older than 8 or at least 9 years now. So assume 9 and 36 -- 8 years ago would make 1 and 28 which is 28 times and not what were looking for.. 10 and 40 ---- 8 years ago would make 2 and 32 which is 16 times not what were looking for... try 11 and 44-- 8 years ago would make 3 and 36-- bingo 12 times- So, Jason is 44 and Bob is 11 years old.
Algebraically we have:
x for Bobs age and
4x for Jason
So 4x = x
But 8 years ago Jason was 12 times older so
4x - 8 = 12(x-8)
4x - 8 = 12x - 96
88 = 8x
x = 11 So Bob is currently 11 years old and Jason is 4(11) or 44 years old.
Sunday, March 16, 2008
Age Problem 2 Solution
Subscribe to:
Post Comments (Atom)
wow what an age difference
ReplyDeleteanyway, thanks for the solution
Many thanks for the solution...^^.. It really helps me a lot!!!!!!! Thank u Thank u Thank u Thank u Thank u Thank u Thank u
ReplyDelete..^^.. great
ReplyDeletelani is seven years older than her brother. Write an expression for lani's age 8 years ago.
ReplyDeletelichiee.. anghirap.. :))
ReplyDeletewow! tnx frend ur a big help
ReplyDeleteSometimes i can answer age problems correctly, but most of the time i can't. So this is a very big help for us!! Mahirap kasi eh!! :)
ReplyDeletehindi naka tulong pra sken iba kc ang solutiong kailangan ko.tnx na lng po>>:)
ReplyDeletekakaiba!! nakakahilo to dre! xD
ReplyDeletemas maganda kung gumamit siya ng table ,,, suggestion lng po ...:|
ReplyDeleteBlah Blah Blah. That Sucks.
ReplyDeleteoo nga
ReplyDeletemas maganda kung table yung ginamit
ReplyDeletetHAnkiiiiE
ReplyDeleteThank you so much for the information that really helps me a lot
ReplyDeleteWOW....!thanxk y0uh......^_^
ReplyDelete