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In 3 years Alex will be 3 times as old as his sister Precy a year ago Alex was times as old as Precy How old are they now?
Wiki User
∙ 14y ago
In 3 years Alex will be 3 times as old as his sister Precy (is now):
a+3 = 3p
a = 3p-3
A year ago Ales was 2 times as old as Precy (is now):
a-1 = 2p
a = 2p+1
3p-3 = 2p +1
3p = 2p +4
p = 4
Precy is 4
a = 2p + 1 or 3p - 3
a = 8 +1 or 12 - 3 = 9
Alex is 9
Wiki User
∙ 14y ago
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