MedVision ad

A Man and his Son (1 Viewer)

michaeljennings

Active Member
Joined
Oct 11, 2009
Messages
2,074
Location
Sydney
Gender
Male
HSC
2011
A man is currently 3 times as old as his son. 8 years ago he was 5 times as old as his son. Find the age of the man and his son at the current time

Please show all working
 

nightweaver066

Well-Known Member
Joined
Jul 7, 2010
Messages
1,585
Gender
Male
HSC
2012
Man's age: 3x
Son's age: x

8 years ago, man was 5 times as old as his son.
Man's age: 3x - 8
Son's age: x - 8

If you multiply son's age by 5, you get man's age.
5(x-8) = 3x-8
5x - 40 = 3x - 8
2x = 32
x = 16

Therefore, Man's age: 48, Son's age: 16
 

Alkanes

Active Member
Joined
May 20, 2010
Messages
1,417
Gender
Male
HSC
2012
General maths is soo hard. No joke, im dead srs
 

Users Who Are Viewing This Thread (Users: 0, Guests: 1)

Top