Q&A - P3 Math

[rocklee]

Hi atutor2001, thanks alot.

[christina soh]

tianzhu:

christina soh:

2. Ali has twice the amount of money than Bob. Bob has thrice the amount of money than Jim. If Ali has $40 more than Jim, how much money does Ali has ?

Hi

For your second question, due to time constraints, I’ll give some pointers for you to draw the MD.

Jim --- 1 unit
Bob ----- 3 units
Ali ----- 6 units

6 -1 ------- 5
5 units ------- 40
1 unit -------8

Ali ------- 6 units -------48

Best wishes

Thank you Tianzhu. Another question:-

There are 200 egss in Basket X and Basket Y. If you transfer 20 eggs in Basket X to Basket Y, there are still 14 more eggs in Basket X than Basket Y. How many eggs in Bakset X at first?

[tianzhu]

christina soh:

Thank you Tianzhu. Another question:-

There are 200 egss in Basket X and Basket Y. If you transfer 20 eggs in Basket X to Basket Y, there are still 14 more eggs in Basket X than Basket Y. How many eggs in Bakset X at first?

Hi

You're welcome.

Due to time constraints, I’ll give you some pointers without drawing the MD.

In the end, there are still 14 more eggs in Basket X than Basket Y.

Basket X ------- 107 eggs
Basket Y ------- 93

At first

Basket X ------107 + 20 --------127.

Best wishes

[Muffins]

christina soh:

Thank you Tianzhu. Another question:-


There are 200 egss in Basket X and Basket Y. If you transfer 20 eggs in Basket X to Basket Y, there are still 14 more eggs in Basket X than Basket Y. How many eggs in Bakset X at first?

If you transfer internally, the total will still remain as 200, so:

200 - 14 = 186

186 ÷ 2 = 93 → Y after the transfer

200 - 93 = 107

107 + 20 = 127

Hope this helped

[small]

MD..


http://farm6.static.flickr.com/5178/5455517613_b3034bd46a.jpg\">

[pertunia]

Hi, anyone can help to solve this question? This is from my son’s assignment. The question is:


Hassan has some pokemon cards to share among his friends. If he gives each friend 6 pokemon cards, he will have 5 cards left. If he gives each friend 8 pokemon cards, he will be short of 7 pokemon cards. How many pokemon cards does Hassan have?


My son is taught to use the guess and check method for questions similar to this. However, the space given for this question is too little. It is like the space for a short question. Can anyone solve this in a very easy manner without using algebra?


Thanks so much.

[small]

Hassan has some pokemon cards to share among his friends. If he gives each friend 6 pokemon cards, he will have 5 cards left. If he gives each friend 8 pokemon cards, he will be short of 7 pokemon cards. How many pokemon cards does Hassan have? \t\t\t\t\t


Gap : 5+7 = 12

Different = 8 - 6 = 2\t\t\t\t\t\t\t\t
12 / 2 = 6 friends\t\t\t\t\t
\t\t\t
From red font :
6 cards x 6 + 5 cards
= 41 cards\t\t\t\t\t\t

Hassan have 41 pokemon cards altogether.

[small]

pertunia:

Hi, anyone can help to solve this question? This is from my son's assignment. The question is:


Hassan has some pokemon cards to share among his friends. If he gives each friend 6 pokemon cards, he will have 5 cards left. If he gives each friend 8 pokemon cards, he will be short of 7 pokemon cards. How many pokemon cards does Hassan have?


My son is taught to use the guess and check method for questions similar to this. However, the space given for this question is too little. It is like the space for a short question. Can anyone solve this in a very easy manner without using algebra?


Thanks so much.

Hi pertunia,

HTH..

Multiple of 6 + 5 : 29, 35, 41, 47, 53
Multiple of 8 - 7 : 25, 33, 41, 49, 57\t

Hassan have 41 pokemon cards altogether.

[Muffins]

Hi small,


just wondering, if multiples of numbers are their numbers that have been multiplied to give the result, wouldn’t the multiples of 11 (6+5) be 11, 22, 33 etc.

sorry for the inconvenience, but couldya pls explain? cannot understand…

[usaik]

Hi,


I need help with the following question. Many thanks in advance!

Jim had 2346 coins. He gave away 27 coins and his friend gave him 628 new coins. He then put the coins equally into 4 boxes.
(a) what was the greatest possible number of coins in each box?
(b) how many coins were left over?