1. A container of sand weighed 5 kg when it was 1/2 full, and weighed 4 kg when it was 1/3 full. What was the weight of the container when it was full?
Answer: 8 kg
2. YY had some money. She bought a necklace for $250 and spent 1/4 of the remaining money on a ring. She still had 1/3 of her money left. How much did YY spend on the ring?
Answer: $50
3. Joanne, Ann and Yati share $240. Joanne receives 1/3 as much money as Yati. After Ann gave $20 of her money to Joanne, Joanne has 1/2 as much money as Yati. How much money does Ann have at first?
Answer: $80
4. Adi and Furqan had $71 altogether. Furqan and Zam had $105 altogether. Adi had 3/5 of the money that Zam had. How much money did Furqan have?
Answer: $20
5. A cook had a total of 336 large and small eggs. She use 4/7 of the large eggs and bought another 24 small eggs. As a result, the number of small eggs she had was 2/3 the number of large eggs left. How many more large eggs than small eggs had she at first?
Answer: 224
Saturday, May 30, 2009
5 Maths questions a day (1)
1. A container of sand weighed 5 kg when it was 1/2 full, and weighed 4 kg when it was 1/3 full. What was the weight of the container when it was full?
2. YY had some money. She bought a necklace for $250 and spent 1/4 of the remaining money on a ring. She still had 1/3 of her money left. How much did YY spend on the ring?
3. Joanne, Ann and Yati share $240. Joanne receives 1/3 as much money as Yati. After Ann gave $20 of her money to Joanne, Joanne has 1/2 as much money as Yai. How much money does Ann have at first?
4. Adi and Furqan had $71 altogether. Furqan and Zam had $105 altogether. Adi had 3/5 of the money that Zam had. How much money did Furqn have?
5. A cook had a total of 336 large and small eggs. She use 4/7 of the large eggs and bought another 24 small eggs. As a result, the number of small eggs she had was 2/3 the number of large eggs left. How many more large eggs than small eggs had she at first?
2. YY had some money. She bought a necklace for $250 and spent 1/4 of the remaining money on a ring. She still had 1/3 of her money left. How much did YY spend on the ring?
3. Joanne, Ann and Yati share $240. Joanne receives 1/3 as much money as Yati. After Ann gave $20 of her money to Joanne, Joanne has 1/2 as much money as Yai. How much money does Ann have at first?
4. Adi and Furqan had $71 altogether. Furqan and Zam had $105 altogether. Adi had 3/5 of the money that Zam had. How much money did Furqn have?
5. A cook had a total of 336 large and small eggs. She use 4/7 of the large eggs and bought another 24 small eggs. As a result, the number of small eggs she had was 2/3 the number of large eggs left. How many more large eggs than small eggs had she at first?
Friday, May 29, 2009
June Holiday Supplementary Classes (Updated)
Dear Pupils of 6-9
Please be reminded that temperature-taking will be conducted when you turn up for all school activities in the June holidays. Don't forget your thermometer and temperature log.
As the canteen will not be open, do pack some light snack.
You should report punctually in your school uniform at the parade ground at 0755 on the following days.
4 June 20 09 (Thursday)
0800 to 1100
Mock Mathematics Examination
5 June 2009 (Friday)
0800 to 1000
Results and Review of Mock Mathematics Examination
22 June 2009 (Monday)
0800 to 1100
Review of Science Topical WS (Environment)
Q12 to Q20
23 June 2009 (Tuesday)
0800 to 0930
Mathematics
0945 to 1100
Mock Science Examination Booklet A
Results and Review of Mock Science Examination
24 June 2009 (Wednesday)
0800 to 0930
Mathematics
0945 to 1100
English Paper 1 Mock Test
Mini EL Class Test (Vocab Cloze, Synthesis and Compre OE)
Your teacher
Mdm Toh
Please be reminded that temperature-taking will be conducted when you turn up for all school activities in the June holidays. Don't forget your thermometer and temperature log.
As the canteen will not be open, do pack some light snack.
You should report punctually in your school uniform at the parade ground at 0755 on the following days.
4 June 20 09 (Thursday)
0800 to 1100
Mock Mathematics Examination
5 June 2009 (Friday)
0800 to 1000
Results and Review of Mock Mathematics Examination
22 June 2009 (Monday)
0800 to 1100
Review of Science Topical WS (Environment)
Q12 to Q20
23 June 2009 (Tuesday)
0800 to 0930
Mathematics
0945 to 1100
Mock Science Examination Booklet A
Results and Review of Mock Science Examination
24 June 2009 (Wednesday)
0800 to 0930
Mathematics
0945 to 1100
English Paper 1 Mock Test
Mini EL Class Test (Vocab Cloze, Synthesis and Compre OE)
Your teacher
Mdm Toh
Monday, May 25, 2009
Maths Questions (2m)
1.
Mrs Sim used honey and water in the ratio of 2 : 7 to make a drink.
How many litres of drink did she make if she used 4 litres of honey? (2m)
2.
Harry is (m + 2) years old now. 2 years ago, his sister was twice his age.
How old is his sister now? (2m)
3.
At 9 am, Bala drove from Town X to Town Y at an average speed of 100km/h.
At the same time, Calvin drove from Town Y towards Town X at an average speed of 95km/h. They met at 11.30pm. Find the distance between Town X and Town Y. (2m)
4.
The ratio of Annie's amount of money to Betty’s amount of money is 4 : 9.
How much more money does Betty have if Annie has $240? (2m)
5.
2/5 of $80 is the same as ___________% of $320. (2m)
Mrs Sim used honey and water in the ratio of 2 : 7 to make a drink.
How many litres of drink did she make if she used 4 litres of honey? (2m)
2.
Harry is (m + 2) years old now. 2 years ago, his sister was twice his age.
How old is his sister now? (2m)
3.
At 9 am, Bala drove from Town X to Town Y at an average speed of 100km/h.
At the same time, Calvin drove from Town Y towards Town X at an average speed of 95km/h. They met at 11.30pm. Find the distance between Town X and Town Y. (2m)
4.
The ratio of Annie's amount of money to Betty’s amount of money is 4 : 9.
How much more money does Betty have if Annie has $240? (2m)
5.
2/5 of $80 is the same as ___________% of $320. (2m)
SA1 - SW
Suggested Answer
Dear Fellow Schoolmates
There will be a Youth Olympic Games Carnival for all the residents in Hougang (1m) on 15 June 2009 from 9 a.m. to 5 p.m. (1m) The admission is free. (1m)
You can take part in 2-a-side Parent-Child Football or 3-on-3 Basketball. (1m) Early participants will get a $10 book voucher. (1m)
For further enquiries, you can contact me at 6 398 2049 or email me at Harris@sun.com (1m)
Thank you.
Harris Heng from 6K
Chairman of Youth Committee
Hougang Residents' Committee
Dear Fellow Schoolmates
There will be a Youth Olympic Games Carnival for all the residents in Hougang (1m) on 15 June 2009 from 9 a.m. to 5 p.m. (1m) The admission is free. (1m)
You can take part in 2-a-side Parent-Child Football or 3-on-3 Basketball. (1m) Early participants will get a $10 book voucher. (1m)
For further enquiries, you can contact me at 6 398 2049 or email me at Harris@sun.com (1m)
Thank you.
Harris Heng from 6K
Chairman of Youth Committee
Hougang Residents' Committee
Tuesday, May 12, 2009
Q11
Ivan bought strawberry cakes and cheese cakes for a party. He spent $112 on the cakes. Each piece of strawberry cake cost $2.50 and each piece of cheese cake cost 40% more than each piece of strawberry cake. 30% of what he bought were cheese cakes. How many pieces of cheese cake did he buy?
Q12
Eileen and Pauline each have some marbles. If Eileen gives 36 marbles to Pauline, both of them will have the same number of marbles. If Pauline gives 12 marbles to Eileen, the number of marbles that Eileen has to the number of marbles Pauline has will be 5 : 1. How many marbles does Eileen have?
Q13
Janice is driving to town. If she drives at an average speed of 60 km/h, she will reach town at 12.30 p.m. If she drives at a higher average speed of 80 km/h, she will reach town at 11.45 a.m. At what average speed should she be driving so that she will reach town at 12 noon?
Q14
A sum of money is shared among the 3 siblings, Joey, Jocelyn and Raymond. Joey has 20% more than Jocelyn and Raymond’s share is 1 2/5 times of Jocelyn’s share. If Joey has $3 600, how much does Raymond have?
Q15
Kim, Lin, Ming and Nan shared a sum of money. Kim received 25% of the total sum of money. Lin received 40% of the total sum of money received by Ming and Nan. Nan received half as much as Ming. Lin and Ming received $480 altogether.
(a) Find the sum of money shared by the four persons.
(b) How many percent more of the sum of money did Ming receive than Kim? Give your answer correct to the nearest whole number.
Q16
In a survey, 20% of the people are working adults and the rest are unemployed. 65% of the unemployed are females and there are 1200 more unemployed females than unemployed males. How many unemployed females should opt out of the survey so that only 40% of the people surveyed are unemployed females?
Q17
Bryan bought 8 files and 5 pens. Darren bought 5 files and 8 pens. Darren paid $3.60 less than Bryan. If a pen cost $1.50, how much did a file cost?
Q18
The ratio of the number of boys to the number of girls in an Athletic CCA is 5: 3. In every training session, each boy has to run 4 rounds while each girl has to run 3 rounds. If a total of 324 rounds are run, how many children are there in the Athletic CCA?
Q19
The number of girls in a school was 40% of the number of boys.
On a Fund Raising Day, each girl decided to donate $3 while each boy decided to donate $2. A total of $1904 was collected.How many girls were in the school?
Q20
Mother gave Jaclyn and Peter $455 to buy some books.
Jaclyn was given $85 more than Peter.
At the bookshop, Jaclyn spent twice as much as Peter.
Peter was left with 3 times as much money as Jaclyn.
How much did Jaclyn spend?
Ivan bought strawberry cakes and cheese cakes for a party. He spent $112 on the cakes. Each piece of strawberry cake cost $2.50 and each piece of cheese cake cost 40% more than each piece of strawberry cake. 30% of what he bought were cheese cakes. How many pieces of cheese cake did he buy?
Q12
Eileen and Pauline each have some marbles. If Eileen gives 36 marbles to Pauline, both of them will have the same number of marbles. If Pauline gives 12 marbles to Eileen, the number of marbles that Eileen has to the number of marbles Pauline has will be 5 : 1. How many marbles does Eileen have?
Q13
Janice is driving to town. If she drives at an average speed of 60 km/h, she will reach town at 12.30 p.m. If she drives at a higher average speed of 80 km/h, she will reach town at 11.45 a.m. At what average speed should she be driving so that she will reach town at 12 noon?
Q14
A sum of money is shared among the 3 siblings, Joey, Jocelyn and Raymond. Joey has 20% more than Jocelyn and Raymond’s share is 1 2/5 times of Jocelyn’s share. If Joey has $3 600, how much does Raymond have?
Q15
Kim, Lin, Ming and Nan shared a sum of money. Kim received 25% of the total sum of money. Lin received 40% of the total sum of money received by Ming and Nan. Nan received half as much as Ming. Lin and Ming received $480 altogether.
(a) Find the sum of money shared by the four persons.
(b) How many percent more of the sum of money did Ming receive than Kim? Give your answer correct to the nearest whole number.
Q16
In a survey, 20% of the people are working adults and the rest are unemployed. 65% of the unemployed are females and there are 1200 more unemployed females than unemployed males. How many unemployed females should opt out of the survey so that only 40% of the people surveyed are unemployed females?
Q17
Bryan bought 8 files and 5 pens. Darren bought 5 files and 8 pens. Darren paid $3.60 less than Bryan. If a pen cost $1.50, how much did a file cost?
Q18
The ratio of the number of boys to the number of girls in an Athletic CCA is 5: 3. In every training session, each boy has to run 4 rounds while each girl has to run 3 rounds. If a total of 324 rounds are run, how many children are there in the Athletic CCA?
Q19
The number of girls in a school was 40% of the number of boys.
On a Fund Raising Day, each girl decided to donate $3 while each boy decided to donate $2. A total of $1904 was collected.How many girls were in the school?
Q20
Mother gave Jaclyn and Peter $455 to buy some books.
Jaclyn was given $85 more than Peter.
At the bookshop, Jaclyn spent twice as much as Peter.
Peter was left with 3 times as much money as Jaclyn.
How much did Jaclyn spend?
Friday, May 8, 2009
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