Q&A - P5 Math

[tracywham]

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?

[tracywham]

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?

[milo-cupcake]

Hi anyone

Please help with the following questions:



Thanks in advanced!

[bb_ mom]

Hi anyone

Please help with the following questions:



Thanks in advanced!

2/3 of remaining distance -> 52
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]

Need help with one more question :

[jo-jed]

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.

[speedmaths.com]

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?

Hi tracywham,

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
.

[belnanna]

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.

[leng2005]

Please help me. :?:help!

[tracywham]

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?

Hi tracywham,

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.