Q&A - P4 Math

[hardeshis]

i spent 1/9 of my salary on a television set and 5/8 of the remainder on a refrigerator. I saved the remaining $420. How much i did spend on the refrigerator?

[MathIzzzFun]

hardeshis:

i spent 1/9 of my salary on a television set and 5/8 of the remainder on a refrigerator. I saved the remaining $420. How much i did spend on the refrigerator?

Hi
spent 1/9 salary --> left 8/9 salary (remainder)
spent 5/8 of remainder on refrigerator
= 5/8 x 8/9 salary = 5/9 salary
left --> 8/9 - 5/9 = 3/9 salary
3/9 salary --> $420
5/9 salary --> $700
$700 spent on refrigerator

cheers.

[Charnic]

Thanks ! Would you think this is a little too difficult for a P4 child ?

[hardeshis]

MathIzzzFun:

hardeshis:

i spent 1/9 of my salary on a television set and 5/8 of the remainder on a refrigerator. I saved the remaining $420. How much i did spend on the refrigerator?

Hi
spent 1/9 salary --> left 8/9 salary (remainder)
spent 5/8 of remainder on refrigerator
= 5/8 x 8/9 salary = 5/9 salary
left --> 8/9 - 5/9 = 3/9 salary
3/9 salary --> $420
5/9 salary --> $700
$700 spent on refrigerator

cheers.

Thank you. Understood.

[corneyAmber]

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[hardeshis]

Karen went shopping with total 50 pieces of $5 notes and $2 notes. After spending 10 pieces of ther $5 notes and 1/3 of her $2 notes, an equal number of $5 notes and $2 notes are remaining.


1) How many $5 notes did she bring along?
2) What is total value of $2 notes she had brought.

[tianzhu]

hardeshis:

Karen went shopping with total 50 pieces of $5 notes and $2 notes. After spending 10 pieces of ther $5 notes and 1/3 of her $2 notes, an equal number of $5 notes and $2 notes are remaining.


1) How many $5 notes did she bring along?
2) What is total value of $2 notes she had brought.

Hi

Hope this helps.

Best wishes

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[Blur Baby]

Can someone please help me with this question? Thank you.


The total mass of 3 big sacks of flour is the same as the total mass of 5 small sacks of flour. A big sack of flour is 2.2 kg heavier than a small sack of flour. What is the mass of a small sack of flour?

[MathIzzzFun]

Blur Baby:

Can someone please help me with this question? Thank you.


The total mass of 3 big sacks of flour is the same as the total mass of 5 small sacks of flour. A big sack of flour is 2.2 kg heavier than a small sack of flour. What is the mass of a small sack of flour?

Hi

http://i48.tinypic.com/1zecvmo.png\">

cheers.

[Blur Baby]

MathIzzzFun:

cheers.

:thankyou: