Q&A - P3 Math

[raysusan]

can someone help me on this please


jerry bought some posters. he bought 3x as many pcs of poster A as poster C and 2x as many pcs of poster B as poster C. he spent a total of $300 on the posters

poster A $1.50 poster B $3.00 poster C $4.50


a] how many pcs of poster B did he buy
b] how much more did he spend on poster B than on poster A

[teh_oh]

raysusan:

can someone help me on this please


jerry bought some posters. he bought 3x as many pcs of poster A as poster C and 2x as many pcs of poster B as poster C. he spent a total of $300 on the posters

a] how many pcs of poster B did he buy
b] how much more did he spend on poster B than on poster A

A [][][]
B [][]
C []
6 Units = $300
1 Unit = 300/6= $50
So 2 pcs of poster B; $50 more on poster B than A.

but then again, can the following be possible too?
A [][][][][][][][][][][][][][][]
B [][][][][][][][][][]
C [][][][][]
30 Units = $300
1 Unit = 300/30= $10
Diff btwn B and A=5 Units=5x$50
So 10pcs of poster B; $50 more on poster B thank A.

:imdrowning:

[raysusan]

teh_oh:

raysusan:

can someone help me on this please


jerry bought some posters. he bought 3x as many pcs of poster A as poster C and 2x as many pcs of poster B as poster C. he spent a total of $300 on the posters

a] how many pcs of poster B did he buy
b] how much more did he spend on poster B than on poster A

A [][][]
B [][]
C []
6 Units = $300
1 Unit = 300/6= $50
So 2 pcs of poster B; $50 more on poster B than A.

but then again, can the following be possible too?
A [][][][][][][][][][][][][][][]
B [][][][][][][][][][]
C [][][][][]
30 Units = $300
1 Unit = 300/30= $10
Diff btwn B and A=5 Units=5x$50
So 10pcs of poster B; $50 more on poster B thank A.

:imdrowning:

that is not the answer :imdrowning:

[tianzhu]

raysusan:

can someone help me on this please


jerry bought some posters. he bought 3x as many pcs of poster A as poster C and 2x as many pcs of poster B as poster C. he spent a total of $300 on the posters

a] how many pcs of poster B did he buy
b] how much more did he spend on poster B than on poster A

Hi

I am wondering if there is missing information such as the price of posters in the question.

In order to find out the number of poster B, I think we need to know the per unit cost of the poster.

Best wishes

[raysusan]

tianzhu:

raysusan:

can someone help me on this please


jerry bought some posters. he bought 3x as many pcs of poster A as poster C and 2x as many pcs of poster B as poster C. he spent a total of $300 on the posters

a] how many pcs of poster B did he buy
b] how much more did he spend on poster B than on poster A

Hi

I am wondering if there is missing information such as the price of posters in the question.

In order to find out the number of poster B, I think we need to know the per unit cost of the poster.

Best wishes

sorry my bad
post edited

poster A $1.50 poster B $3.00 poster C $4.50

[tianzhu]

raysusan:

can someone help me on this please


jerry bought some posters. he bought 3x as many pcs of poster A as poster C and 2x as many pcs of poster B as poster C. he spent a total of $300 on the posters

poster A $1.50 poster B $3.00 poster C $4.50

a] how many pcs of poster B did he buy
b] how much more did he spend on poster B than on poster A

Hi

One way to solve this question is to use “Grouping”

Consider a group of 3 poster A, 2 poster B and 1 poster C.

3x1.5 --------4.5
2x3 ------- 6
1x4.5 ------ 4.5
Cost for 1 group ------- 15

300/15 ------- 20
There are 20 groups.

Hence, you’ll have
Poster A ------- 60
Poster B ------- 40
Poster C ------- 20

(40x3) – (60x1.5) ------- 30

Best wishes

[wahwah]

Hi ksi,

Thanks for the solution.

[corneyAmber]

wahwah:

Hi ksi,

Thanks for the solution.

:welcome:

[raysusan]

thz u so much tianzhu

:thankyou:

[tianzhu]

raysusan:

thz u so much tianzhu

:thankyou:

Hi

You're welcome.

Best wishes