Q&A - P5 Math

[Oldschool]

KOOLMUM:

Container A and Container B are identical. Container A is 2/3 filled with water while Container B is 1/4 filled with water. The total mass of Container B and its contents is 5/6 as much as the total mass of Container A and its contents. The total mass of the two containers with their contents is 2750g. What is the mass of each empty container?


:imcool:

Hi,

http://i44.tinypic.com/34dq0m1.jpg\">

BTW,

Container B + Its contents = 5/11(2750) = 1250g

Then, C = 1250 - 3(50) = 1100g

Regards

[Oldschool]

marstolive:

There were some sweets in boxes A,B and C.

Box A contained 1/7 of the total number of sweets in box B and C

The ratio of the number of sweets in box B to the total number of sweets in box A and C is 3:1
If there are 30 more sweets in Box B than Box A, find the total number of sweets in Boxes A,B and C.



:scared:
Any kind soul, can help me?

Hi,

A : B + C
1 : 7 (total

B : A + C
3 : 1 (total 4)
6 : 2 (total 8, so total unchanged)

So,

A : B : C
U : 6U : U (total 8U)

B - A = 5U --> 30
U --> 6

Total = 8U --> 8x6 = 48

Regards

[Oldschool]

marstolive:

Jane went shopping at a departmental store. If she buys 6 plates and 10 cups, she will have $12 left. If she buys 10 plates and 6 cups, she will need another $ 8.


a) Given that a cup costs $3, how much does a play cost?
b) How much does Jane have?

:nailbite:
Can someone help?

Hi,

http://i42.tinypic.com/vhfi8m.jpg\">

Regards

[Oldschool]

2632parent:

Mary and Alice had a total of 1020 marbles.After Mary gave away 1/2 of her marbles and Alice gave away 84 marbles, the ratio of the number of Mary's marbles to the number of Alice's marbles became 5:3. What was the ratio of the number of Mary's marbles to the number of Alice' marbles at first :lovesite: :? :thankyou: :udaman:

Hi,

http://i39.tinypic.com/21479jr.jpg\">

Regards

[hazelwong]

Hi, can anyone please help with this question?


Observe the following statements:
A+B+C=26
A-B=6
C-B=2
i) Insert a pair of brackets ( ) in the number statement below to illustrate the correct working order to find the value of A
26 – 2 – 6 ÷ 3 + 6
ii) what is the value of A?
Thanks :?:

[cookieandmonster]

Please help.


Fang had some boxes of fruits for sale. She sold 35 boxes on Monday. She sold 1/5 of the remaining boxes of fruits on Tuesday. Then she had 1/3 of the total number of boxes of fruits left. How many boxes of fruits did she have at first?

[The Right Equation]

cookieandmonster:

Please help.


Fang had some boxes of fruits for sale. She sold 35 boxes on Monday. She sold 1/5 of the remaining boxes of fruits on Tuesday. Then she had 1/3 of the total number of boxes of fruits left. How many boxes of fruits did she have at first?

http://i40.tinypic.com/qosns9.jpg\">

[The Right Equation]

cookieandmonster:

Please help.


Fang had some boxes of fruits for sale. She sold 35 boxes on Monday. She sold 1/5 of the remaining boxes of fruits on Tuesday. Then she had 1/3 of the total number of boxes of fruits left. How many boxes of fruits did she have at first?

method 2

http://i40.tinypic.com/f56btf.jpg\">

method 1 preferred, as for most students, it is easier to derive the ratio units in method 1, than draw the model above for method 2.

[MathIzzzFun]

hazelwong:

Hi, can anyone please help with this question?


Observe the following statements:
A+B+C=26
A-B=6
C-B=2
i) Insert a pair of brackets ( ) in the number statement below to illustrate the correct working order to find the value of A
26 – 2 – 6 ÷ 3 + 6
ii) what is the value of A?
Thanks :?:

(26 - 2 - 6) ÷ 3 + 6
...(26-2-6) gives 3B

A = 12

cheers

[MathIzzzFun]

cookieandmonster:

Please help.


Fang had some boxes of fruits for sale. She sold 35 boxes on Monday. She sold 1/5 of the remaining boxes of fruits on Tuesday. Then she had 1/3 of the total number of boxes of fruits left. How many boxes of fruits did she have at first?

Using equal fractions method:

4/5 remainder = 1/3 Total = 4/12 Total
Total -> 12 units
Remainder -> 5 units
7 units -> 35
Total -> 35/7 x 12 = 60

cheers.