
By: angieneo (offline) Tuesday, February 14 2012 @ 06:42 PM CST (Read 1359 times)



angieneo 
1)
Mr Yeo awards 15 points for every piece of work handed in on time and deducts 8 points for work handed in late.
In the month of August, his class pupils collected 1073 points.
For every 5 pieces of work given , Mr Yeo found that 2 pieces of work were handed in late.
How many piece of work were handed in on time
2)
A train left Marymount Station with some passengers.
At the first stop, no passengers alighted and the number of passengers who boarded the train
was 2/3 of the original number of passengers in the train.
At the second stop, 1/5 of the passengers alighted and 32 passengers boarded the train
At the third stop , 5/6 of the passengers alighted and 28 passengers boarded the train .
At Bartley Station, all 150 passengers alighted from the train.
How many passengers were there when the MRT left Marymount Station
Thank you

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Registered: 05/14/10 Posts: 10





By: awyw1201 (offline) Tuesday, February 14 2012 @ 08:27 PM CST



awyw1201 
Mr Yeo awards 15 points for every piece of work handed in on time and deducts 8 points for work handed in late.
In the month of August, his class pupils collected 1073 points.
For every 5 pieces of work given , Mr Yeo found that 2 pieces of work were handed in late.
How many piece of work were handed in on time
Think simply for a set of 5 pieces of work.
On time : Late 3 : 2
Thus, 1 set of 53 x 15  2 x 8 = 29 points
No. of sets1073/29 = 37
On time37 x 3 = 111
Ans: 111 pieces on time

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Registered: 07/08/11 Posts: 87





By: angieneo (offline) Tuesday, February 14 2012 @ 08:30 PM CST



angieneo 
thank you so much , how about the question 2 ? are you able to solve ?

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Registered: 05/14/10 Posts: 10





By: awyw1201 (offline) Tuesday, February 14 2012 @ 08:35 PM CST



awyw1201 
For Q2, pls refer to attached.

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Registered: 07/08/11 Posts: 87





By: angieneo (offline) Thursday, February 16 2012 @ 10:41 AM CST



angieneo 

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Registered: 05/14/10 Posts: 10



