Q&A - P5 Math
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25 children get 9 more. So total given out by 3 children is 9x25 is 225. Each of the 3 child gave 225/3 is 75.
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rrjan:
Let me try,Can someone kindly help me with this qn.
Another qn:
A shopkeeper had 377 pens n files. After he sold 4/7 of his pens and bought another 28 files, the umber of files he had became 2/3 the number of pens. How many files had he at first?
before
P[][][][][][][]
F[ ] ............... }Total of P&F 377
After
P[][][][][][][]
F[][] ................................ }Total of P&F 377+28=405
u=405/9=45
Ans=90-28=62 -
At first pen is 7 unit; file is 377 - 7unit
then pen sold 4 unit left 3 unit; file is 377-7unit +28 = 2 unit
so 377+28 =9 unit
1 unit is 405/9=45
at first file is 377-7unit=377-315=62 -
PiscesLeo:
still u need help on this qn?Another question:
Some old folks are sharing 2 bunches of grapes. If each of them eats 12 grapes, there will be 7 grapes short. If each of them eats 11 grapes, there will be 3 grapes extra. If one bunch of grapes has 19 fewer grapes, find the number of grapes in the larger bunch.
TIA
Pls refer page 177&178, similar qn done....... -
smartmummy:
Some old folks are sharing 2 bunches of grapes. If each of them eats 12 grapes, there will be 7 grapes short. If each of them eats 11 grapes, there will be 3 grapes extra. If one bunch of grapes has 19 fewer grapes, find the number of grapes in the larger bunch.TIA
If each person eats 12 grapes, they will be short of 7 grapes.
If each person eats 11 grapes, they have 3 extra.
This means there are 7 + 3 = 10 old folks altogether.
Total number of grapes = 11 x 10 + 3 = 113
1 bunch has 19 fewer grapes than the other bunch.
113 - 19 = 94
94 / 2 = 47
47 + 19 = 66
The larger bunch has 66 grapes.
Enjoy! -
smartmummy:
Smartmummy, thanks again
still u need help on this qn?PiscesLeo:
Another question:
Some old folks are sharing 2 bunches of grapes. If each of them eats 12 grapes, there will be 7 grapes short. If each of them eats 11 grapes, there will be 3 grapes extra. If one bunch of grapes has 19 fewer grapes, find the number of grapes in the larger bunch.
TIA
Pls refer page 177&178, similar qn done....... -
Maths Olympiad Tutor:
Maths Olympiad Tutor, :thankyou:smartmummy:
Some old folks are sharing 2 bunches of grapes. If each of them eats 12 grapes, there will be 7 grapes short. If each of them eats 11 grapes, there will be 3 grapes extra. If one bunch of grapes has 19 fewer grapes, find the number of grapes in the larger bunch.TIA
If each person eats 12 grapes, they will be short of 7 grapes.
If each person eats 11 grapes, they have 3 extra.
This means there are 7 + 3 = 10 old folks altogether.
Total number of grapes = 11 x 10 + 3 = 113
1 bunch has 19 fewer grapes than the other bunch.
113 - 19 = 94
94 / 2 = 47
47 + 19 = 66
The larger bunch has 66 grapes.
Enjoy! -
May I check with the expert here. Is there any math book about solving problem sum?
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janicelhl:
May I check with the expert here. Is there any math book about solving problem sum?
My colleague bought this and said was very good.
i didnt buy bcos DS still have plenty of past yr exam paper and assessment book not done.
Title: Challenging Maths Problem made easy
Author: Ammiel Wan Chee Hong
Publisher : Marshall Cavendish Education -
janicelhl:
May I check with the expert here. Is there any math book about solving problem sum?
I recommend the following book; my DD1 is using it in school
http://www.onsponge.com/index.php?option=com_flippingbook&view=book&id=4&tmpl=component
![](\"http://i48.tinypic.com/ddz5h0.jpg\")
http://i48.tinypic.com/ddz5h0.jpg\">
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