Question 941368: A couple wants to have only four children so spaced that the first is older than the second by 2years,the second older than the third by three years,the third older than the fourth by 4years.If their plan is realized,how old will the eldest child be when the youngest is nine years old?
Answer by ankor@dixie-net.com(22740)   (Show Source):
You can put this solution on YOUR website! A couple wants to have only four children
a, b, c, d
so spaced that the first is older than the second by 2years,
a = b + 2
the second older than the third by three years,
b = c + 3
the third older than the fourth by 4years.
c = d + 4
Therefore
a = d + 9
If their plan is realized, how old will the eldest child be when the youngest is nine years old?
d = 9
a = 9 + 9
a = 18
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