Q&A - P5 Math

[S6169]

tianzhu:

S6169:

Hi, Need some help,

Andy and Betty saved a fixed amount every day. Betty, who started saving earlier, saved $4 each day. By the 10th dayof Betty's savings, Andy had saved $18. By the 16th day of Betty's savings, Andy had saved $54.
(a) Find the ratio of Andy's savings to Betty's savings. (leave your answer in the simplest form)
(b) On which day of Betty's savings will Andy save the same amount as Betty? RGS SA1 2011

Question (b) is ask about on which day of Betty's savings when they saved the same amount of money or how much is the same amount? Confused by the answer sheet. :? Thanks a lot!

Hi

It is the 5th day after day 16 which is day 21.

Best wishes

Thank you so much. The answer in the answer sheet is 84 which is the amount of money on the 21th day of the Betty's saving.

[zckenny]

Mark’s current age is 1/4 of Ronald’s. In 24 years’ time, Ronald’s age will be 14 years less than twice Mark’s age. What is Ronald’s age now?

[YumYum]

Hi, need help with this qn:


Three sisters Lisa, Ming and Nora shared the cost of a present for their father. Lisa paid 1/4 of the total share of Ming and Nora. Ming paid 1/9 of the total share of Lisa and Nora. Nora paid $60 more than Ning. How much did the present cost?

Thanks

[small]

zckenny:

Mark's current age is 1/4 of Ronald's. In 24 years' time, Ronald's age will be 14 years less than twice Mark's age. What is Ronald's age now?

Hi,

Someone posted this question before.

http://www.kiasuparents.com/kiasu/forum/viewtopic.php&f=68&t=33165&p=729796

[small]

YumYum:

Hi, need help with this qn:


Three sisters Lisa, Ming and Nora shared the cost of a present for their father. Lisa paid 1/4 of the total share of Ming and Nora. Ming paid 1/9 of the total share of Lisa and Nora. Nora paid $60 more than Ning. How much did the present cost?

Thanks

Hi YumYum,

Please refer to the following link.

http://www.kiasuparents.com/kiasu/forum/viewtopic.php&f=68&t=35175&p=754627

[YumYum]

small:

YumYum:

Hi, need help with this qn:


Three sisters Lisa, Ming and Nora shared the cost of a present for their father. Lisa paid 1/4 of the total share of Ming and Nora. Ming paid 1/9 of the total share of Lisa and Nora. Nora paid $60 more than Ning. How much did the present cost?

Thanks

Hi YumYum,

Please refer to the following link.

http://www.kiasuparents.com/kiasu/forum/viewtopic.php&f=68&t=35175&p
=754627

Hi small,

Thanks for directing me to the link :rahrah:

Gd nite!

[MANGO STAR]

Hi, need help for this MCQ question.


16/? is between 4/9 and 4/7

1) 25 2) 28 3) 30 4) 36

[small]

MANGO STAR:

Hi, need help for this MCQ question.


16/? is between 4/9 and 4/7

1) 25 2) 28 3) 30 4) 36

After changed 4/9 and 4/7 to 16/36 and 16/28 then you will know the answer is 30.

[small]

YumYum:

small:

[quote=\"YumYum\"]Hi, need help with this qn:


Three sisters Lisa, Ming and Nora shared the cost of a present for their father. Lisa paid 1/4 of the total share of Ming and Nora. Ming paid 1/9 of the total share of Lisa and Nora. Nora paid $60 more than Ning. How much did the present cost?

Thanks

Hi YumYum,

Please refer to the following link.

http://www.kiasuparents.com/kiasu/forum/viewtopic.php&f=68&t=35175&p
=754627

Hi small,

Thanks for directing me to the link :rahrah:

Gd nite![/quote]
You are welcome YumYum.

[bndreve]

Need help on the below math question.

What is the shortest way to solve it without listing down the sequence?

Q-
A group of children shared some candy canes at a party. If each child was given 1 candy cane, 80 candy canes would be left. If each child was given 4 candy canes, 8 candy canes would be left. How many children were at the party?