Tutor MathsGuru: Ask me for your burning Maths questions!

[Vanilla Cake]

Herbie:

Amy spent $320 of her income and saved the rest.

When she decreased her spending by 45%, her savings increased by 60%
How much was her income?

Before
Spent : $320 (100%)
Saving : ? (100%)

After
Spent : $176 (55%)
Saving : ? (160%)

$320+100% saving = $176+160%saving
60% saving = $144
100% saving = $240

Income = Spending+Saving
Before: Spent = $320 (100%) + Saving = $240 (100%) = $560
After: Spent = $176 (55%) + Saving = $384 (160%) = $560

Hope that I don't confuse you and let's wait for Mathsguru's solution.

[firebird]

Dear Vanilla Cake


Many many thanks for your answers. They are very helpful.

With best regards
firebird

[Cheerfuldad]

Hi!


Help needed!

These are P5 qtns:

Q1 Tom and Jerry each has some money. If Tom spends $90 per day and Jerry spends $45 per day, Tom will have $1100 left when Jerry has spent all his money. If Tom spends $45 each day and Jerry spends $90 each day, Tom will have $1700 left when Jerry has spent all his money. How much did Jerry have?


Q2 Andy, Betty, Candy and Danny each have some money. The amount of money Andy has is 1/3 of the total amount of money Betty, Candy and Danny have. The amount of money Betty has is 1/4 of the total amount of money Andy, Candy and Danny have. The amount of money Candy has is 1/5 of the total amount of money Andy, Betty and Danny have. If Danny has $1725, how much do they have altogether?

TIA

God Bless!

[starlight1968sg]

Cheerfuldad:

Hi!

Help needed!
These are P5 qtns:
Q1 Tom and Jerry each has some money. If Tom spends $90 per day and Jerry spends $45 per day, Tom will have $1100 left when Jerry has spent all his money. If Tom spends $45 each day and Jerry spends $90 each day, Tom will have $1700 left when Jerry has spent all his money.
Q2 Andy, Betty, Candy and Danny each have some money. The amount of money Andy has is 1/3 of the total amount of money Betty, Candy and Danny have. The amount of money Betty has is 1/4 of the total amount of money Andy, Candy and Danny have. The amount of money Candy has is 1/5 of the total amount of money Andy, Betty and Danny have. If Danny has $1725, how much do they have altogether?
TIA
God Bless!

See http://www.kiasuparents.com/kiasu/forum/viewtopic.php?t=6373&postdays=0&postorder=asc&start=780

[firebird]

Dear maths guru


Please help me on the following:

Mrs Ong took 10 hours to drive from Town A to Town B.
Mr. Soong drove along the same route but took 8 hours to complete the journey. The difference in their average speed was 10 km/h.

(a) What was Mrs Ong’s average speed?

(b) Find the distance between Town A and Town B.

Thank you
firebird

[Guan Hui]

firebird:

Dear maths guru


Please help me on the following:

Mrs Ong took 10 hours to drive from Town A to Town B.
Mr. Soong drove along the same route but took 8 hours to complete the journey. The difference in their average speed was 10 km/h.

(a) What was Mrs Ong's average speed?

(b) Find the distance between Town A and Town B.

Thank you
firebird

a)
mr soong finish the drive 2 hrs faster than mrs ong.
difference in speed =10km/h
after driving for 8 hrs.
mr soong finish the drive.
mrs ong is 8 x 10=80km behind mr soong or behind the finishing line
mrs ong need to use 2 more hrs to cover up this 80 km
so mrs ong average speed is 80/2=40km/hr

b)
mrs ong use 10 hrs
so the distance is 10 x 40 =400km

[firebird]

Dear Guan Hui


Many thanks for the answer.

With best regards
firebird

[Guan Hui]

firebird:

Dear Guan Hui


Many thanks for the answer.

With best regards
firebird

haha np,
solving question for you at this hour is a pleasant break from my own muggingXD
so... thank you

[Cheerfuldad]

Hi Starlight1968


Thank you for referring me to the link.

Regards

See http://www.kiasuparents.com/kiasu/forum/viewtopic.php?t=6373&postdays=0&postorder=asc&start=780

[Daddy]

Dear maths guru,


Need help!!

Area of triangle problem.
1) The area of the triangle is 1/16 of the area of the rectangle. If the total area of the rectangle and triangle is 252 cm2. Find the perimeter of the rectangle.

http://i222.photobucket.com/albums/dd39/tham33/area.jpg\">

Thanks