Q&A - PSLE Math

[elkniwt]

MathIzzzFun:

Hi

jack's spending : jill's spending --> 25u : 11u
jack's total : jill's total --> 25u + 256 : 11u
jack's total = 3 x jill's total
25u + 256 = 33u
1u --> 32... using this, a) & b) can be worked out

cheers.

Hi MathIzzzFun,

Thank you very much!!!

Regards.

[Dreamerz]

Hi atutor2001 and tianzhu

Q2 the total number of boys and girls in classes A and B was 100% more than the total number of boys in the 2 classes. the ratio of the number of boys to the number of girls in class A was 2:3. the ratio of the number of boys to the number of girls in class B was 1:4. if there are 18 more boys in class A than B, how many pupils are there in Class A altogether?

that's y I'm also stuck

[tianzhu]

Dreamerz:

Hi atutor2001 and tianzhu

Q2 the total number of boys and girls in classes A and B was 100% more than the total number of boys in the 2 classes. the ratio of the number of boys to the number of girls in class A was 2:3. the ratio of the number of boys to the number of girls in class B was 1:4. if there are 18 more boys in class A than B, how many pupils are there in Class A altogether?

that's y I'm also stuck

Hi

Where is this question from?

If it is from books, you may write to the publisher to clarify.

Best wishes

[Dreamerz]

Hi tianzhu,

Q1 the total of the two baskets is given as 960.
Basket A has 600 while B has 360.

dont know y they test understanding of our language rather than being straight forward … sigh

[tianzhu]

Dreamerz:

Hi tianzhu,

Q1 the total of the two baskets is given as 960.
Basket A has 600 while B has 360.

dont know y they test understanding of our language rather than being straight forward ... sigh

Hi

First thing first, did you make any changes to the original question?

Do take note that 600 and 360 were not given in your original question.Please post the original question as it is shown in your source.

Dreamerz:

1) mr tan had a total of 960 fruits. 30% of the fruits in basket A were oranges and the rest were pears. 40% of the fruits in basket B were pears and the rest were oranges. after some fruits were transferred from A to B and B to A, 25% of the fruits in basket A and 75% of the fruits in basket B were oranges. how many fruits are there in basket A in the end?

Best wishes

[MrBin]

2632parent:

On Sunday, Mrs Tan gave Devi and Susan some sweets. On Monday, Devi gave Susan 40%of her sweets. On Tuesday, after Susan gave 2/5 of her sweets to Devi both of them had the same number of sweets. If Susan had 112 more sweets than Devi at first, how many sweets did Devi have on Sunday. :thankyou:

Devi : 70
Susan : 182

[match3frog]

tianzhu:

match3frog:

2) Question 16 - ???? missing from this question below


In an amusement park, there were 3/8 as many girls as boys. After 20 boys left that park and 12 girls entered the park, the ratio of boys to girls became 3:7
(a) How many girls were at the amusement park at first? (ans: 144)
(b) How many children were at the amusement park at the end? (ans: 520)

Thanks!

Hi

Good Morning.

If you work backwards from the given answer, the missing ratio is 3:7.

Best wishes

Hi Tianzhu,

Thank you! Have a good day.

Rgds

[Michaelia0816]

Hi again! I was unsure of a question and would like to get step by step answer. This question that makes me unsure cause of remainder!!! It was like a p5 question but appear in p6 question!

----------------------------------------------------------------------------------In a camp, there was 1 teacher for every 20 pupils. The number of girls was 3/5 the number of boys. There were 420 more boys than girls.
a) How many children were in the camp?
b) How many teachers were in the camp?
Dear friends here, I know the a) answer is 1050, but when you divide by 20, the answer is 52 R 10, should the answer round up to 53?

[Michaelia0816]

Give me a yes and no answer as I do not have time to read step by step answer.

[tianzhu]

Michaelia0816:

Hi again! I was unsure of a question and would like to get step by step answer. This question that makes me unsure cause of remainder!!! It was like a p5 question but appear in p6 question!

----------------------------------------------------------------------------------In a camp, there was 1 teacher for every 20 pupils. The number of girls was 3/5 the number of boys. There were 420 more boys than girls.
a) How many children were in the camp?
b) How many teachers were in the camp?
Dear friends here, I know the a) answer is 1050, but when you divide by 20, the answer is 52 R 10, should the answer round up to 53?

Hi

The answers are (a) 1680 and (b) 84.

2 units ----- 420
1unit ----- 210

8 units ----- 1680

1680/20 ----- 84

Best wishes