Q&A - P5 Math

[MathIzzzFun]

Jamesbond:

MathIzzzFun:

[quote=\"ttyh\"]A group of girls was seated in a circle. A box of 115 sweets was passed around in a clockwise direction, starting from Mary. Each girl took a sweet each time the box was passed to her. If Mary took the last sweet in the box, she would have taken a total of 7 sweets. How many girls were there in the group?

115-1 = 114 --> 114 sweets passed 6 full rounds ie every girl took 6 sweets.

Number of girls in the group = 114/6 = 19

cheers.

Hi MathIzzzFun,
Can u pl clear my doubt in this sum.... :?
I worked out as
7 girls....7 sweet
11 girls....6 sweets..
And got 18...
Pl enlighten me.....[/quote]
If Mary took the last sweet, she would have 7 sweets -> the rest had 6 sweets so, we remove the extr sweet from Mary, then she will have same number of sweets as the rest - 6 sweets.
This means total of 115-1= 114 sweets distributed to all the girls.
Number of girls = 114÷6 = 19

cheers.

[ttyh]

Thanks for solving my previous questions…

There were 87 children at a party. After 1/3 of the boys and 2/7 of the girls left the party, there were an equal number of boys and girls at the party. How many children remained at the party?

[The Right Equation]

ttyh:

Thanks for solving my previous questions....

There were 87 children at a party. After 1/3 of the boys and 2/7 of the girls left the party, there were an equal number of boys and girls at the party. How many children remained at the party?

first method recommended.

http://i39.tinypic.com/30vevq1.jpg\">

[Jamesbond]

Gotcha MathIzzzFun…Thx.

[Charnic]

Pls help.

During a sale, Wilson spent $120 on a pair of shoes. He spent 2/5 of the remaining money on a bag and a book. After his spending, Wilson realized that he had 1/3 of his money left. If the book cost 1/2 as much as the bag, how much is the bag.
Thanks in advance

[Charnic]

Pls help.

During a sale, Wilson spent $120 on a pair of shoes. He spent 2/5 of the remaining money on a bag and a book. After his spending, Wilson realized that he had 1/3 of his money left. If the book cost 1/2 as much as the bag, how much is the bag.
Thanks in advance

[The Right Equation]

CNS:

Pls help.

During a sale, Wilson spent $120 on a pair of shoes. He spent 2/5 of the remaining money on a bag and a book. After his spending, Wilson realized that he had 1/3 of his money left. If the book cost 1/2 as much as the bag, how much is the bag.
Thanks in advance

http://i40.tinypic.com/5e8znb.jpg\">

[Charnic]

The Right Equation Education:

CNS:

Pls help.

During a sale, Wilson spent $120 on a pair of shoes. He spent 2/5 of the remaining money on a bag and a book. After his spending, Wilson realized that he had 1/3 of his money left. If the book cost 1/2 as much as the bag, how much is the bag.
Thanks in advance

http://i40.tinypic.com/5e8znb.jpg\">

Thanks

[The Right Equation]

CNS:

Pls help.

During a sale, Wilson spent $120 on a pair of shoes. He spent 2/5 of the remaining money on a bag and a book. After his spending, Wilson realized that he had 1/3 of his money left. If the book cost 1/2 as much as the bag, how much is the bag.
Thanks in advance

http://i44.tinypic.com/nef4w1.jpg\">

method 1 preferred

[Charnic]

CNS:

The Right Equation Education:

[quote=\"CNS\"]Pls help.

During a sale, Wilson spent $120 on a pair of shoes. He spent 2/5 of the remaining money on a bag and a book. After his spending, Wilson realized that he had 1/3 of his money left. If the book cost 1/2 as much as the bag, how much is the bag.
Thanks in advance

http://i40.tinypic.com/5e8znb.jpg\">

Thanks[/quote]Sorry, can explain why the shoes is 4 units ?