Q&A - PSLE Math

[tianzhu]

CloudeeDaz:

thank you ,tianzhu!
You made it seemed so simple!

......and to think that i acually spend some time last night trying (unsuccessfully )to work it out! :oops: :oops:

@wahwah thanks for the question!

Hi

You're welcome.

KSP is a learning community.We share and learn together.

Best wishes

[enrichsg.040788ng]

I had a blog to help parents & students in solving world problem. The link is as below


http://excelprimaths.blogspot.sg

Thank you and wishing your kid excel in school.

[Udon]

pls help, thanks


Pete had 3 boxes of marbles. He transferred 1/5 of the marbles from Box A to Box B. Then he transferred 1/4 of the marbles from Box B to Box C. Finally, he transferred 1/2 of the marbles from Box C to Box A. As a result, there were 134 marbles in Box A, 69 marbles in Box B and 50 marbles in Box C.
What was the total number of marbles in Box A and Box C at first?

[tianzhu]

Udon:

pls help, thanks


Pete had 3 boxes of marbles. He transferred 1/5 of the marbles from Box A to Box B. Then he transferred 1/4 of the marbles from Box B to Box C. Finally, he transferred 1/2 of the marbles from Box C to Box A. As a result, there were 134 marbles in Box A, 69 marbles in Box B and 50 marbles in Box C.
What was the total number of marbles in Box A and Box C at first?

Hi

You may use \"WB\"

The answers are 105 and 77.

Please check your PM.I've sent the slide to you.

Here's an example of a similar question.

Best wishes

http://farm8.staticflickr.com/7236/7344390536_69246f67b8_z.jpg\">

[ftwm]

Hi pls help e Q;


Town A and Town B were 60km apart. Mrs Leong left Town A and cycled towards Town B at 11 a.m. at an average speed of 12 km/h. At the same time, Mr Sim left Town B and cycled towards Town A at an average speed of 18km/h. They met each other along the way and continued to cycle without stopping at the same speed.

(a) At what time did they meet each other?

(b) How far was Mrs Leong from Town B when Mr Sim reached Town A?

[ftwm]

Question;


Jeffrey, Caroline and Belinda need to sell some movie tickets which cost $5.50 each. Jeffrey sold 4/7 of the tickets and Caroline sold 4/5 of the no. of tickets Belinda sold. Belinda sold 91 fewer tickets than Jeffrey. How much money did they collect altogether from the tickets they sold?

[ftwm]

Q pls help;


3 women donated some money to an orphanage. The amount of money that Ann donated to the total amount of money that Bonnie and Carol donated was 3 : 5. The amount of money that Carol donated to the total amount of money that Ann and Bonnie donated was 2 : 3. Carol donated $35 more than Bonnie.
(a) How much money did the 3 women donate altogether?
(b) How much money did Ann donate?

[ftwm]

Q;


Edwin and George had a total of 330 stamps. Edwin had 20% more stamps than George. Edwin started by giving 30% of his stamps to George. Then, George in return gave 25% of his stamps to Edwin. How many more stamps must Edwin give to George so that they have the same number of stamps in the ant?

Tq

[wahwah]

Hi,

Need help again. Many thanks in advance.

In school A, there were 580 boys and 868 girls. In school B, there were 1420 boys and 382 girls. Some children were transferred from school A to school B. as a result, 40% of the children in school A and 75% of the children in school B were boys. How many children were transferred from school A to school B?

[Maths Hub]

ftwm:

Hi pls help e Q;


Town A and Town B were 60km apart. Mrs Leong left Town A and cycled towards Town B at 11 a.m. at an average speed of 12 km/h. At the same time, Mr Sim left Town B and cycled towards Town A at an average speed of 18km/h. They met each other along the way and continued to cycle without stopping at the same speed.

(a) At what time did they meet each other?

(b) How far was Mrs Leong from Town B when Mr Sim reached Town A?

Hi,

a) Since every hour, they are 18+12=30 km closer, it will take 60/30=2h for them to meet each other.
Time--> 2 hours after 11am --> 1pm
b) Time taken for Mr Sim to reach Town A--> 60/18 = 3 1/3
Distance Mrs Leong has travelled--> 3 1/3 X 12 = 40km
Ans: 60 - 40 = 20 km

Cheers.