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Primary 4 | Maths
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Aisah
Aisah

Primary 4 chevron_right Maths chevron_right Singapore

Please help with explanation. Thank you.

Date Posted: 4 years ago
Views: 773

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Alan : Geetha = 4 : 1
Total age now = 46
8 years ago = 46-8-8 = 30
4u + 1u = 30
5u=30
1u = 6
Therefore, 8 years ago, Geetha is 6 years old.

Hope this helps
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AC Lim
Ac Lim's answer
12281 answers (A Helpful Person)
1st
Aisah
Aisah
4 years ago
Thank you.
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Sarah Tan Si Kai
Sarah Tan Si Kai's answer
6 answers (Tutor Details)
Since both of them have grown eight years older, their total age increases by 16 years. So in order to get the total age where Alan is 4 times as old as Geetha, need to take away 16 from their total age now.
Aisah
Aisah
4 years ago
Thank you.