## Q&A - P5 Math

### Re: Q&A - P5 Math

Hi, need help on this question. Thank you in advance.

Class 5A and 5B have the same number of pupils. The ratio of the number of boys in 5A to the number of boys in 5B is 2 : 3. The number of girls in 5A to the number of girls in 5B is 7 : 4.

(A) Find the ratio of the number of boys to the number of girls in 5A.

(B) If there are 15 fewer girls than boys in 5B, how many pupils are there in 5B?

Class 5A and 5B have the same number of pupils. The ratio of the number of boys in 5A to the number of boys in 5B is 2 : 3. The number of girls in 5A to the number of girls in 5B is 7 : 4.

(A) Find the ratio of the number of boys to the number of girls in 5A.

(B) If there are 15 fewer girls than boys in 5B, how many pupils are there in 5B?

### Re: Q&A - P5 Math

Another question:

Mufaddal wants to make a square by piecing rectangular cards together, each measuring 7 cm by 5 cm. What is the least number of cards he needs to make a square?

Mufaddal wants to make a square by piecing rectangular cards together, each measuring 7 cm by 5 cm. What is the least number of cards he needs to make a square?

- milo-cupcake
- OrangeBelt
**Posts:**37**Joined:**Sat Jan 12,

### Re: Q&A - P5 Math

2/3 of remaining distance -> 52milo-cupcake wrote:Hi anyone

Please help with the following questions:

Thanks in advanced!

1/3 of remaining distance -> 52/2=26

3/3 of remaining distance -> 26*3=78

2/3 of full distance -> 78

1/3 of full distance ->78/2=39

Full distance ->39*3=117km

- milo-cupcake
- OrangeBelt
**Posts:**37**Joined:**Sat Jan 12,

### Re: Q&A - P5 Math

Please help

Mr Lee had a sum of money.On Monday,he spent 1/5 of his money and then lost a $2 note.On Tuesday,he spent 1/3 of his remaining money on 3 identical bags of rice.On wednesday,he bought another 4 such bags of rice.He had $21.60 left in the end.Find the sum of money he had at first.

Mr Lee had a sum of money.On Monday,he spent 1/5 of his money and then lost a $2 note.On Tuesday,he spent 1/3 of his remaining money on 3 identical bags of rice.On wednesday,he bought another 4 such bags of rice.He had $21.60 left in the end.Find the sum of money he had at first.

- speedmaths.com
- BrownBelt
**Posts:**559**Joined:**Mon Oct 12,**Total Likes:**3

### Re: Q&A - P5 Math

Hi tracywham,tracywham wrote:Another question:

Mufaddal wants to make a square by piecing rectangular cards together, each measuring 7 cm by 5 cm. What is the least number of cards he needs to make a square?

The smallest square should be a 35 cm by 35 cm square.

(Lay out the cards in 5 columns and 7 rows)

So he needs 5 x 7 =

**35 cards**.

Hope this helps.

Cheers

**speedmaths**

.

### Re: Q&A - P5 Math

I need help on this too.. Thanks in advance.

**There were 3/5 as many children as adults on a bus. At the next stop, 3 children boarded and 2 adults alighted from the bus.Then, there were 5/6 as many children as adults on the bus. How many children were there on the bus at first.**### Re: Q&A - P5 Math

Please help me. :?:help!

Last edited by leng2005 on Sun May 04, 2014 10:10 pm, edited 1 time in total.

### Re: Q&A - P5 Math

speedmaths.com wrote:Hi tracywham,tracywham wrote:Another question:

Mufaddal wants to make a square by piecing rectangular cards together, each measuring 7 cm by 5 cm. What is the least number of cards he needs to make a square?

The smallest square should be a 35 cm by 35 cm square.

(Lay out the cards in 5 columns and 7 rows)

So he needs 5 x 7 =35 cards.

Hope this helps.

Cheers

speedmaths

.

Hi. I got the same answer. But the teacher gave the answer as 6 cards.