ttlkbs:

Pls help.


Huini had 5/6 as many stickers as Wendy. When they each gave away 64 stickers, Huini had 7/10 as many stickers as Wendy. How many stickers did they have altogether in the end?

A model representation (work backwards):
http://i61.tinypic.com/2d1w85c.jpg\">

gancheongmum:

Hi,


Can anyone explain how these sums should be solved with models? TIA

Qtn 1) At first, Shop A had 156kg of rice and Shop B had 72kg of rice. After each shop sold the same quantity of rice, the amount of rice that Shop A had was 4 times that of Shop B. How many kg of rice did Shop A sell?

http://i57.tinypic.com/bdtg87.jpg\">


This can also be solved by using Constant Difference concept.
http://i58.tinypic.com/1zggg20.jpg\">

Jerico:

Can someone please help me to solve the following problem :-


3/8 of Amy's money is equal to 1/4 of Margaret's money. After each of them spent $40, Margaret had $64 more than Amy. How much does Margaret have left after spending the money ?

Thank you in advance for your kind assistance !

http://i60.tinypic.com/24oc6z9.jpg\">

spvaish:

:?: Please help with the following question:


There are some black balls and white balls in a bag. If one black ball is removed from the bag, the number of black balls left will be 1/7 of the total number of balls left. If two white balls are removed from the bag, the number of black balls left will be 1/5 of the total number of balls left.How many balls arethere in the bag?

:thankyou:

http://i59.tinypic.com/b4fali.jpg\">

COOKIE64:

Please Please help, could not sleep.


Janice collected 6 times as many Singapore stamps as Australia Stamps . She exchanged 32 Singapore stamps for 13 Australia stamps with her sister. In the end she had an eaual number of Singapore and Australia stamps. What was the total number of stamps she had before the exchange?

http://i60.tinypic.com/2h4cd3r.jpg\">

StudyRoom:

ttlkbs:

[quote=\"yeyewynes\"]please help to solve this problem:


Tom had $4 more than Sheila. Tom spent twice as much money as Sheila. In the end, Sheila had twice as much money as Tom. If they had $42 altogether at first,
A) How much did Tom spend?
B) How much did Sheila spend?

Anybody solves this? Is the answer a) $18 b) $9.
But I don't know how to show and explain if my DD is going to do this?
Help pls.

T [---------][4]
S [---------]
total = 42, so S = (42-4)/2 = 19, T = 19+4=23

at the end,
T [----][xxxx][xxxx]
S [----][----][xxxx]
we see that [xxxx] = [----][4]
replacing all the [xxxx] boxes with [----][4]:
T [----][----][4][----][4]

this is equals to 23.
so [----] is (23-8)/3 = 5
so [xxxx]= 5+4 = 9
Tom spent 2*9 = 18
Sheila spent 9[/quote]

http://i60.tinypic.com/2w4b7t4.jpg\">

Taurus:

Hi, can help to solve this qns.


Irene, Jane, Kate and Lydia had a total of 288 beads. Irene had 47 beads. The number of beads Jane had was 45 fewer than the total number of beads that Kate and Lydia had. How many beads did Irene and Jane have altogether?

Thanks

http://i61.tinypic.com/2ntaf5s.jpg\">

Harini5:

Hi,


Can anybody help me with this P4 Maths question?
Joseph and Perry scored a total of 130 points. Perry ad Tommy scored a total of 141 points. Joseph and Tommy scored a total of 99 points. How many points did Joseph score?

Pls provide the answer with models.

Thks :?:

If a model can be helpful,
http://i60.tinypic.com/2e64vua.jpg\">

Maths Tutor Mr. Lim:

angehock:

Appreciate if someone can help...


1) Mrs Tan has just enough money to buy 24 apples or 40 pears. If she wants to buy equal number of apples and pears, how many of each type can she buy with the amount of money?

Visual representation:
http://i59.tinypic.com/14x2rl3.jpg\">

Keep the amount of money fixed.
Keep dividing until we can't divide further. We reach the ratio that 3 apples cost the same as 5 pears. i.e. 3 apples are interchangeable with 5 pears.

Once you get there, to find the equal number of apples and pears, we can \"count\" and see that Mrs Tan can buy 15 apples and 15 pears with the same amount of money.

jolenekoh:

Please help. And appreciate model too. Thank you!

At the beginning of the month, Pet Shop A and Pet Shop B had the same number of hamsters. By the end of the month, Pet Shop A sold 38 hamsters and Pet Shop B sold 70 hamsters. The numbers of hamsters left in Pet Shop A was 5 times the number of the hamsters in Pet Shop B. What was the total number of hamsters in both shops before any of the hamsters were sold?

Model drawing:
http://i58.tinypic.com/10ia4oz.jpg\">

4 units = 32 hamsters
1 unit = 32 / 4 = 8 hamsters
Total number of hamsters at first = 8 + 70 + 8 + 70 = 156 hamsters