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Secondary 1 | Maths
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poppins
Poppins

Secondary 1 chevron_right Maths chevron_right Singapore

why is my answer wrong? the correct answer is 20

Date Posted: 11 months ago
Views: 157
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AC Lim
AC Lim
11 months ago
Possibility age for Darius are
2² × 3 × 5
2² × 3² × 5
2² × 5

So less than 30 is 2² × 5

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Darius = 2² × 5 = 20
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AC Lim
Ac Lim's answer
13108 answers (A Helpful Person)
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poppins
Poppins
11 months ago
what did i do wrong?
AC Lim
AC Lim
11 months ago
possible age for Darius are
2² × 3 × 5 or
2² × 3² × 5 or
2² × 5

So less than 30 is 2² × 5

Elaine = 2 × 3²
Darius= 2² × ( )× 5
LCM = 2² × 3² × 5