Tutor MathsGuru: Ask me for your burning Maths questions!

[kancheongmum]

liketoeat:

please help me solve this question taken from school worksheet


How many different ways can Joyce match her clothes if she has 3 skirts, 2 blouses and 3 pairs of shoes? (ans: eighteen)

Thank you.

Hi liketoeat

3 x 2 x 3 = 18 ways

You can also list out and do different combinations you will also get 18.

[beauty queen]

The length of a rectangle is thrice its breadth. If the lenth of of the rectangle is x cm, find the perimeter of the rectangle.(leave your answer in terms of x)


is this way excepted?

1 rectangle ---------> 2x + 2/3 x

3 rectangle----------> 6x+ 6/3 x = 8x


8x/3 ( 1 rectangle)


is this accepted instead of 2+2/3 x?

thanks

[kancheongmum]

beauty queen:

The length of a rectangle is thrice its breadth. If the lenth of of the rectangle is x cm, find the perimeter of the rectangle.(leave your answer in terms of x)


is this way excepted?

1 rectangle ---------> 2x + 2/3 x

3 rectangle----------> 6x+ 6/3 x = 8x


8x/3 ( 1 rectangle)


is this accepted instead of 2+2/3 x?

thanks

Hi beauty queen

I have raised this question in this forum before and confirm with the school maths teacher. Yes, you have to simplify 2x +2/3x to 2 2/3 x or 8/3 x.

[keahiasus]

hope to get help for this qn

on the same day rachel started working on the qns of the book maths p6 bk 1 while larry works on the qns on the book exciting math bk1.if rachel finishes 16 qns a day while larry completes 4 qns a day , 710 qns will be left for rachel by the time larry does all his qns .if larry completes 16 qns a day while rachel does 8 qns a day 910 qns will be left in exciting maths bk 1 left for rachel . find the no.p of qns in each book .
thanks

[wkong]

Hi All:


I need help for the following:

Box A contains some 50 cents and Box B contains some 20 cents coins. There are 8 more coins in Box B than in Box A. The amount in Box A is $6.50 more than the amount in Box B. How many 50 cents coins are there in Box A?

Thanks.

[2DMommy]

Pls help me with this question :


John and Peter had an equal number of stickers. After Peter gave 27 stickers to John, John had 4 times as many stickers as Peter. How many stickers did Peter have at first?\t

Thanks !

[capricorn28]

Hi All :


Please help me with the following question.

Jane bought just enough money to buy 2kg of Flour and 5kg of Rice. If she bought 5kg of Flour and 2kg of Rice, she will have $9.30 left. In the end, Jane changed her mind and spent all her money on 7kg of Flour and some lollipops at $0.62 each instead. How many lollipops did she buy?

Thank you

[Brenda10]

2DMommy:

Pls help me with this question :


John and Peter had an equal number of stickers. After Peter gave 27 stickers to John, John had 4 times as many stickers as Peter. How many stickers did Peter have at first?\t

Thanks !

Hi, DD working:

J : P
5 : 5 (Equal number)
8 : 2 (After Peter gave 27, John had 4 times as many stickers as Peter)

3u = 27
1u = 9

Therefore Peter at first have 5 x 9 = 45 stickers

Thank you

[Brenda10]

wkong:

Hi All:


I need help for the following:

Box A contains some 50 cents and Box B contains some 20 cents coins. There are 8 more coins in Box B than in Box A. The amount in Box A is $6.50 more than the amount in Box B. How many 50 cents coins are there in Box A?

Thanks.

Hi, dd working:

A B
0.50 0.20

20= $10.00, 28=$5.60, Diff =$4.40
25 =$12.50, 33=$6.60, Diff =$5.90
27 =$13.50, 35=$7.00, Diff = $6.50 (correct)

There are 27 of 50 cents coin in box A.

Thank you.

[iFruit]

capricorn28:

Hi All :


Please help me with the following question.

Jane bought just enough money to buy 2kg of Flour and 5kg of Rice. If she bought 5kg of Flour and 2kg of Rice, she will have $9.30 left. In the end, Jane changed her mind and spent all her money on 7kg of Flour and some lollipops at $0.62 each instead. How many lollipops did she buy?

Thank you

cost of Flour = F
cost of Rice = R
Lollipops = L

2F+5R - 5F -2R = 9.30
3R-3F = 9.30
R-F=3.10
R = F+3.10

Total money = 2F +5(F+3.10) = 7F+15.50---->(1)

Jane bought 7F + 0.62L--->(2)

From(1) and (2)
0.62L = 15.50
L = 15.5/0.62 = 25