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Secondary 1 | Maths
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Secondary 1 chevron_right Maths chevron_right Singapore

Pls help qn11,12

Date Posted: 6 days ago
Views: 69
sstrike
Sstrike
6 days ago
Q(12)
30÷2 = 15
8+7=15
height
=784÷(8×7)
=14 cm (Ans)
sstrike
Sstrike
6 days ago
Q(11)

18=2×3²
30=2×3×5
LCM(18,30)=2×3²×5
= 90

July → 31 days
Aug → 31 days

90 - 2×31 = 28
28+1 = 29

Ans : 29ᵗʰ Sep

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sstrike
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5577 answers (A Helpful Person)
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M
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5 days ago
Thank you
M
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4 days ago
Thank you
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5577 answers (A Helpful Person)
prime number