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primary 5 | Maths | Whole Numbers
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Nanny Kai
Nanny Kai

primary 5 chevron_right Maths chevron_right Whole Numbers chevron_right Singapore

Please help me to get an understandable method

Date Posted: 1 year ago
Views: 322
sstrike
Sstrike
1 year ago
【difference unchanged】

in the end
F : NF : F-NF : N+F
= 2 : 1 : 1 : 3
= 70 : 35 : 35 : 105
(a)
631-105 = 526 (Ans)

(b)
at first
F + NF : F-NF
= 631 : 35

NF = (631-35)÷2= 298

$78.9÷(298-35)
= $0.30 (Ans)

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VT Teaches
Vt Teaches's answer
6 answers (Tutor Details)
1st
Part a) 526 books were sold
Part b) the price difference is $0.30
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HiderApplecross
Hiderapplecross's answer
1783 answers (Tutor Details)
Hi, I provide 1 to 1 tuition, $20/1.5h, can cover English / Maths / Science, ex-school teacher with more than 20 years of teaching experience, can produce teaching cert from NIE, WhatsApp 9033 8810 or email [email protected] :)