Q&A - PSLE Math

[Happy Mama]

Hi, can someone please help on the question below? Many thanks.


Question :
There are $5 notes, $2 notes, 50 cent coins and 20 cent coins found in a cash register. The total number of coins is 5/8 of the total number of notes. There are 36 more notes than the number of coins. The number of 20 cent coins is 1/3 of the number of 50 cent coins. The number of $5 notes is twice the number of $2 notes. What is the total value of all the notes and coins in the cash register?

[small]

Hi Happy Mama, Please find the solution.


http://s4.postimage.org/b98chbgz3/Coins_and_notes.jpg\">

[Mum1113]

small:

Hi Happy Mama, Please find the solution.


http://s4.postimage.org/b98chbgz3/Coins_and_notes.jpg\">

hello small - can u share the solution ? I can't see anything :?

[Happy Mama]

small:

Hi Happy Mama, Please find the solution.


http://s4.postimage.org/b98chbgz3/Coins_and_notes.jpg\">

Thank you, small, for coming to the rescue, but I am not able to see your solution. Can you please re-post? Many thanks.

[small]

Hi Happy Mama,


The answer should be $409.50. I have pasted the link for your reference, see if you can download.

http://s4.postimage.org/b98chbgz3/Coins_and_notes.jpg

:oops:

[Happy Mama]

small:

Hi Happy Mama,


The answer should be $409.50. I have pasted the link for your reference, see if you can download.

http://s4.postimage.org/b98chbgz3/Coins_and_notes.jpg

:oops:

:thankyou: very much, small...

[bellerina]

Yu Xuan:

bellerina:

Please help on this Q! Thanks!


Jack packed his books into 2 boxes, Box A & Box B.
He packed (4/5) as many books in Box A as Box B at 1st.
After transferring 16 books from Box B to Box A, there are now (3/4) as many books in Box B as Box A.
How many books were there in each box at 1st?

Hi, this is internal transfer with unchange total.
Equate the total of both A & B before and after the transfer;

Before
A : B
4 : 5
28 : 35 Total --> 63

After
A : B
4 : 3
36 : 27 Total --> 63

Using A;
36u - 28u --> 16
8u --> 16
1u --> 16 / 8 = 2

At first;
A--> 2 * 28 = 56
B --> 2 * 35 = 70

:thankyou: ~ Yu Xuan!

[Belle2011]

Dear all,

Please help me with
Jean is a hairdresser. She receives a fixed basic salary each month. She also receives a commission of 15% per hair service done. Last year, the average amount that she received for her hair services per month was $2,400. If her earnings was $17,520 last year, find her monthly fixed basic salary.
(source: PSLE Revision paper 4; answer is $1100).
Thank-you.

Cheers,
Belle.

[Dharma]

Belle2011:

Dear all,

Please help me with
Jean is a hairdresser. She receives a fixed basic salary each month. She also receives a commission of 15% per hair service done. Last year, the average amount that she received for her hair services per month was $2,400. If her earnings was $17,520 last year, find her monthly fixed basic salary.
(source: PSLE Revision paper 4; answer is $1100).
Thank-you.

Cheers,
Belle.

Average earnings per month = $17,520.00 / 12 = $1460.00
Average commission earned per month = 15% x $2400.00 = $360.00
Monthly fixed salary = $1460.00 - $360.00 = $1,100.00

[Belle2011]

Dharma:

Belle2011:

Dear all,

Please help me with
Jean is a hairdresser. She receives a fixed basic salary each month. She also receives a commission of 15% per hair service done. Last year, the average amount that she received for her hair services per month was $2,400. If her earnings was $17,520 last year, find her monthly fixed basic salary.
(source: PSLE Revision paper 4; answer is $1100).
Thank-you.
Cheers,
Belle.

Average earnings per month = $17,520.00 / 12 = $1460.00
Average commission earned per month = 15% x $2400.00 = $360.00
Monthly fixed salary = $1460.00 - $360.00 = $1,100.00

Thanks very much, Dharma.
How come I didn't think of that?

What about
There are a total of 548 pupils in a hall. 2/5 of the girls are 24 less than
2/3 of the boys. How many boys are there in the hall?

Many thanks again.

Cheers,
Belle.