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Dιĸeт: υмυr anιѕa 21/2 υмυr ғanιѕelιѕιн 24 тaнυn
jwв: 21:2 = 10.5
24:2 = 12
jadι, υмυr anιѕa 10.5 тaнυn dan υмυr ғanι 12 тaнυn
=5/2 f
a-f= 24
5/2f-f=24
5/2- 2/2 f =24
3/2f = 24
f= 24 : 3/2
=24 x 2/3
=16 tahun
a= 2 1/2 f
= 5/2 x 16
=40 tahun
jadi umur anisa = 40 tahun dan fani 16 tahun