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primary 5 | Maths | Rate & Ratio
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Azfer
Azfer

primary 5 chevron_right Maths chevron_right Rate & Ratio chevron_right Singapore

Hi. Please help and explain. Thanks

Date Posted: 3 years ago
Views: 465

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AC Lim
Ac Lim's answer
12435 answers (A Helpful Person)
1st
Hope this helps
Vk
Vk
3 years ago
Ihi hi s this under guess and check ?
Vk
Vk
3 years ago
May I ask why take 2 -1 ? Thanks
AC Lim
AC Lim
3 years ago
Assumption method.
Free gift of washcloths = 1
Free gift with pacifier = 2
The difference of free gift = 2-1 = 1
AC Lim
AC Lim
3 years ago
You can use guess and check too.
FYI, Guess & check and assumption method are correlation. If can use guess and check, normally can solve using assumption method too.
Vk
Vk
3 years ago
Can we exchange number ?
AC Lim
AC Lim
3 years ago
Do you mean, if all are pacifiers?
Yes you can.
If assumed all are pacifier, total gift = 5×2 =10
Gift extra = 10 - 8 = 2
Therefore, customer with washclothes = 2÷1 = 2.