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primary 6 | Maths | Data Analysis
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Nur Qaisara
Anonymous

primary 6 chevron_right Maths chevron_right Data analysis chevron_right Singapore

I really need help with this question...

Date Posted: 5 years ago
Views: 345
J
J
5 years ago
Assumption method.

Assume all 50 packets are small.

Number of sweets = 50 x 5 = 250

Now we know the total number of sweets is 302. So we need to replace some of the small packets with big packets

When we replace 1 small packet (with 5 sweets) with 1 big packets (9 sweets), the total number of sweets increases by 4.


302 - 250 = 52
We need an increase in 52 sweets.
52 ÷ 4 = 13

So we need to replace 13 small packets with big packets.


This means that there are actually 13 big packets

So number of small packets
= 50 - 13
= 37

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Koh Ming Wei Keith
Koh Ming Wei Keith's answer
26 answers (Tutor Details)
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This solution is based on the assumption that your child has learned algebra manipulation.