Q&A - P5 Math

[speedmaths.com]

850 children took part in a contest. They were divided into two groups.
1/4 of the boys are in Group X and 1/3 of the girls are in Group Y.
There are as many boys as girls in Group Y.
How many boys and how many girls took part in the contest?

Hi,

Please check/confirm the numbers/fractions in the question.

Cheers



speedmaths
.

[milo-cupcake]

Last question:



Thanks in advance!

[belnanna]

Can someone please help on this question? Thanks soo much!

Yvonne had 35% more money than Sufen but 20% less than Roy.
If Roy had $675, how much did Sufen have?

[speedmaths.com]

Can someone please help on this question? Thanks soo much!

Yvonne had 35% more money than Sufen but 20% less than Roy.
If Roy had $675, how much did Sufen have?

Hi belnanna,

One possible solution:


Roy → $675


Yvonne → (0.8 × $675)
[Yvonne had 20% less than Roy]


Sufen → (0.8 × $675) ÷ 1.35 = ??
[Yvonne had 35% more money than Sufen]


Can you solve from here?

Please let us know if you still need help.

Cheers



speedmaths
.

[milo-cupcake]

Hi,
Can someone help with the following question ?



Thanks in advance!

[Kangkangteo]

Hi,
Can someone help with the following question ?



Thanks in advance!

If each girl gets 3 rubber bands,

170 - 5 x 3 = 155

155/7 = not whole number (reject)


If each girl gets 6 rubber bands,

170 - 5 x 3 x 2 = = 140

140/7 = 20

20/2 = 10

10 x 7 = 70 boys

70 : 5 = 14 : 1

a) The ratio of boys to girls is 14 : 1


70 + 5 = 75 girls and boys

b) There are 75 girls and boys.

[belnanna]

Can someone please help on this question? Thanks soo much!

Yvonne had 35% more money than Sufen but 20% less than Roy.
If Roy had $675, how much did Sufen have?

Hi belnanna,

One possible solution:


Roy → $675


Yvonne → (0.8 × $675)
[Yvonne had 20% less than Roy]


Sufen → (0.8 × $675) ÷ 1.35 = ??
[Yvonne had 35% more money than Sufen]


Can you solve from here?

Please let us know if you still need help.

Cheers



speedmaths
.

Thank you SpeedMath! love you!

[hnghng]

Please help! Thanks.

A group of people met at a party. Each person shook hands with everyone else. Mr Li shook hands with 3 times as many men as women. Mrs Li shook hands with 4 times as many men as women. How many men and how many women were there at the party?

[hnghng]

One more question pls !!
Box A contains 50 cents coins and Box B contains 20 cents coins. There are 19 more coins in Box B than in Box A. But the amount of money in Box A is $1.30 more than the amount of money in Box B. How much money is in Box A?

[belnanna]

Please someone help on this question.. Thanks so much!

Dora has 2 litres of milk. She used 7/12 litre to make strawberry milkshake. The remaining milk was used to make chocolate milkshake .
A) How much milk was used to make chocolate milkshake?
B) how much more milk did she use to make chocolate milkshake than strawberry milkshake ?