Q&A - PSLE Math

[whitety]

Hi MathIzzzFun,


Thank you very much!

[jarenchuatw]

Help needed for the question below:


Amin spent 2/7 of his money on 4 books and 8 erasers. He spent the remaining amount on 6 books, 10 rulers and 12 erasers. How many rulers could he buy with 6/7 of his money?

[kwcllf]

Hi please help


Mr Samad made some toys for sale. He sold 20% of the toys on Monday. He sold 27 of the toys on Tuesday and on Wednesday he sold 10% of the remaining toys. After that he found that the toys he had left is 1more than 50% of the number of toys he had made. How many toys did he make?

[2632parent]

Hi, kaisu master and councillor thank you for the solution.

[tianzhu]

kwcllf:

Hi please help


Mr Samad made some toys for sale. He sold 20% of the toys on Monday. He sold 27 of the toys on Tuesday and on Wednesday he sold 10% of the remaining toys. After that he found that the toys he had left is 1more than 50% of the number of toys he had made. How many toys did he make?

Hi

A similar question has been discussed before.

http://www.kiasuparents.com/kiasu/forum/viewtopic.php?f=69&t=280&hilit=Kailing+Jim&start=4650

Best wishes

[jonaandr]

anyone can help on this question?


http://i45.tinypic.com/2ykj6ec.jpg\">

[jonaandr]

Please help to solve this question.


http://i47.tinypic.com/10xhi8m.jpg\">

[MathIzzzFun]

jarenchuatw:

Help needed for the question below:


Amin spent 2/7 of his money on 4 books and 8 erasers. He spent the remaining amount on 6 books, 10 rulers and 12 erasers. How many rulers could he buy with 6/7 of his money?

Hi

4 books + 8 erasers --> 2/7
2 books + 4 erasers --> 1/7
6 books + 12 erasers --> 3/7
6 books + 10 rulers + 12 erasers --> 5/7
10 rulers --> 2/7
6/7 --> 30 rulers

cheers.

[MathIzzzFun]

jonaandr:

Please help to solve this question.


http://i47.tinypic.com/10xhi8m.jpg\">

Hi

this was discussed before..

http://i49.tinypic.com/ixdqqb.png\">

cheers.

[kwcllf]

jonaandr:

anyone can help on this question?


http://i45.tinypic.com/2ykj6ec.jpg\">

4A+4B+4C= 32u
Average is 32u/3

4D+4E+4F = 41u
Average is = 41u/3

41u/3 - 32u/3 = 90
1u = 30

therefore 4C = 30 x 9 = 270