Q&A - P4 Math

[intoxicated40]

pls help…


Matthias and hui min had 48 Pokemon cards. Matthias gave 1/2 of his pokemon cards to hui min. in return, hui min gave 2/5 of her total pokemon cards to Matthias. if they have the same number of pokemon cards now, how many pokemon cards did Matthias have at first?

thanks

[PapayaDad]

in the end

m=24
h=24

work backwards, h gave 2/5…so left with 3/5 = 24
1/5 = 8
5/5 = 40

h=40
m=8, m gave 1/2 left 8
so m have 16 at first

[intoxicated40]

PapayaDad:

in the end

m=24
h=24

work backwards, h gave 2/5....so left with 3/5 = 24
1/5 = 8
5/5 = 40

h=40
m=8, m gave 1/2 left 8
so m have 16 at first

you saved my day. thanks

[tracywham]

Hi, I need some help for the following questions:


(1) Ali, Ben and Charles had some marbles. Ali had 1/3 of the marbles.
Ben had 1/3 of the marbles. Charles had 210 marbles.
How many marbles did they have altogether?

(2) Caline had 120 beads at first. She gave 35 beads to Danny and a
number of Beads to Elle. Caline then had 1/3 of her beads left.
How many beads did Caline give to Elle?

Thank you in advance.

[Oldschool]

tracywham:

Hi, I need some help for the following questions:


(1) Ali, Ben and Charles had some marbles. Ali had 1/3 of the marbles.
Ben had 1/3 of the marbles. Charles had 210 marbles.
How many marbles did they have altogether?

(2) Caline had 120 beads at first. She gave 35 beads to Danny and a
number of Beads to Elle. Caline then had 1/3 of her beads left.
How many beads did Caline give to Elle?

Thank you in advance.

Hi

http://i39.tinypic.com/3587xxe.jpg\">

Regards

[PapayaDad]

(1) Ali, Ben and Charles had some marbles. Ali had 1/3 of the marbles.

Ben had 1/3 of the marbles. Charles had 210 marbles.
How many marbles did they have altogether?
Ali had 1/3
Ben had 1/3
So Charlier have the remainder which is also 1/3.
1/3 = 210
In total they have 210 x 3 = 630

[tracywham]

Thanks for your answer. I got the same as yours. Thought I had made mistake and was quite puzzle with the answers given. Thanks for help and clarification.


1 more question:


Alan had 1/3 as many marbles as Charles. Ben had 5/6 as many marbles as Charles. If Ben had 48 more marbles than Alan, how many marbles did all the three boys have altogether?

[Oldschool]

tracywham:

1 more question:

Alan had 1/3 as many marbles as Charles. Ben had 5/6 as many marbles as Charles. If Ben had 48 more marbles than Alan, how many marbles did all the three boys have altogether?

Hi,
http://i42.tinypic.com/rkn1y0.jpg\">

Regards

[tracywham]

Oh… now I get it… thanks for your drawing… got a better understanding…

[fohope]

Hi,

Could anyone help me? Thanks in advance.

1) Mr Wong bought 8 baskets of durians. In each basket, there were 35 durians. 2/7 of the durians were bad and he threw them away. He sold 5/8 of the good ones. How many durians had he left?

2)Dan bought some stamps, Ali bought twice as many and they gave 1/4 of their total to Betty. Betty bought another 30 more and found that she had 126 stamps altogether. How many stamps had Dan at first?

3)Jame spent 5/8 of his money on a dictionary and 7 pens. The cost of each pen is 1/6 of his remaining money. If the total cost of the 7 pens is sgd20 more than the cost of the dictionary, how much did James have at first?

4) There are some books in a cupboard. 1/3 of the books are in Chinese, 6 of them are in Malay and the rest are in English. If there are 42 English books, what is the total number of Chinese and Malay books?