Can someone help me with this question?


45 blue balls and 12 green balls were put into a basket containing some blue and green balls. There were 23 more blue balls than green balls in the end. How many fewer blue balls than green balls were there in the basket at first?

tianzhu:

Hi, hope this helps.


http://farm4.static.flickr.com/3463/3993421153_4806021a53_o.jpg\">

Can I use the multiples of 3 and 4 for this question?

peggy:

yeonee,


Thank you so much for sharing !!
And the explanation is very clear.

You are welcome.

peggy:

Can anyone help me with this P4 Qtn ?


Annie has an amount of cookies less than 60. If she packs in a bag of 5, there'll be 2 left. But if she packs in a bag of 7, she'll be short of 3. How many cookies does she has ?

Help !!!

Hi, I learn from somewhere you can apply the following method:-

Multiple of 5
5,10,15,20,25,30,35,40,45,50,55
(+2)
7,12,17,22,27,32,37,42,47,52,57

Multiple of 7
7,14,21,28,35,42,49,56,63
(-3)
4,11,18,25,32,39,46,53,60

The answer is 32 cookies

Thank you.

Hi, I have one question:-


John had 4 times as much money as Jessie. After John received$240 and Jessie received $180, John now has twice as much money as Jessie. How much did they have altogether at first?

Hi, why we have to divide by 2 for this equation?



quote=\"Dharma\"]

Muffins:

Hi Dharma.

Sorry to be a buzzkill, but the actual question was 21 cm, not 210 cm....

Hi Muffins,

To climb 21cm

N x (N + 1) / 2 = 21

N x (N + 1) = 42
6 x 7 = 42
N = 6 days

By using 210cm I was trying to show that it will be easier to solve the problem by finding a pattern. The listing method will
be just too long.[/quote]