Q&A - P4 Math

[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

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cheers.

[Blur Baby]

MathIzzzFun:

cheers.

:thankyou:

[Jamesbond]

Sam had four time as many stamps as muthu at first. when both added an equal number of stamps to their collection, muthu had 66 stamps and sam had thrice as many stamps as muthu. How many stamps did each of them add to their collection? Pl explain in detail…

[Jamesbond]

Emmi has a collection of 125 fiction and non fiction books. 2/5 of the fiction books is equal to 3/5 of the non fiction books. How many more fiction books than non fiction books are there in his collection? Pl explain me.... :sad:

[J and J]

Jamesbond:

Sam had four time as many stamps as muthu at first. when both added an equal number of stamps to their collection, muthu had 66 stamps and sam had thrice as many stamps as muthu. How many stamps did each of them add to their collection? Pl explain in detail....

Before
Sam=> 4u
Muthu => u

After A number to stamps added
Sam => 4u + A
Muthu => u + A
Muthu => 66 stamps
Sam is thrice as many stamps as muthu

3u = 2 x 66
u = 44
A => 66-44 = 22

So 22 stamps were added to each.