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**soha****Real Member**- Registered: 2006-07-07
- Posts: 2,530

A)A number added to its two thirds is equal to 35.Find the number.

B)The sum of two numbers is 50 , their diffrence is 10 .Find the numbers.

thanks:)

"Let us realize that: the privilege to work is a gift, the power to work is a blessing, the love of work is success!"

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**Khushboo****Member**- Registered: 2007-10-16
- Posts: 47

Let the no. be x

=>x+2/3x=35

=>5x/3=35

or x=21

b) let the no. be x,y

=> x+y=50......1)

=>x-y=10.........2)

you can simultaneously solve and cancel y

=> 2x=60

or x=30

similarly solve for y, cancel out x by putting minus sign beneath both the equations.

=>2y=40

or y=20

this should help

khushboo

*Last edited by Khushboo (2007-10-22 23:03:20)*

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**JaneFairfax****Member**- Registered: 2007-02-23
- Posts: 6,868

Khushboo wrote:

Let the no. be x

=>x+2/3x=35

=>5x/3=35

or x=21

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**Khushboo****Member**- Registered: 2007-10-16
- Posts: 47

oops i am sorry

Jane is correct

it should be

=>x+2/3x=35

=>5x/3=35

or x=21

and not 14

Thanxs

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**landof+****Member**- Registered: 2007-03-24
- Posts: 131

simplified in my language:

a)35 is (5/3) or 1 2/3 times of the number. Find 1 times the number.

b)the smaller number is 1/2(50-10). Just add 10 to that result and you have the greater number.

*Last edited by landof+ (2007-10-24 17:38:53)*

I shall be on leave until I say so...

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**soha****Real Member**- Registered: 2006-07-07
- Posts: 2,530

Khushboo wrote:

oops i am sorry

Jane is correct

it should be=>x+2/3x=35

=>5x/3=35

or x=21and not 14

Thanxs

i see 21 there, not 14

"Let us realize that: the privilege to work is a gift, the power to work is a blessing, the love of work is success!"

- David O. McKay

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**ganesh****Administrator**- Registered: 2005-06-28
- Posts: 35,503

soha,

The post has been edited by Khushboo. She has replaced 14 by 21 in post#2.

It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.

Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.

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