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**haftakhan****Member**- Registered: 2010-06-28
- Posts: 30

in a league male to female ratio is 6:5.If there are 138 players in the league ,How many are female ?

A)6/11*138=76 females

is it right ?

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**mathsyperson****Moderator**- Registered: 2005-06-22
- Posts: 4,900

Nearly, you just needed to use the other number.

Male:Female :: 6:5, so you want to multiply by 5/11 instead.

Why did the vector cross the road?

It wanted to be normal.

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**haftakhan****Member**- Registered: 2010-06-28
- Posts: 30

is this question right ?

Given that A,B,C and D are whole numbers.Such that A+B=8,B+D=11,B+D=13 and C+D=14

find the value of A,B,C,D ?

in this question B+D had two values.

Is this question right ?

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**ZHero****Real Member**- Registered: 2008-06-08
- Posts: 1,889

Probably not.

One of the "B+D" should be "A+D".

*Last edited by ZHero (2010-06-29 00:41:53)*

If two or more thoughts intersect, there has to be a point!

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**bobbym****bumpkin**- From: Bumpkinland
- Registered: 2009-04-12
- Posts: 109,606

Hi haftakhan;

Changing the B+D=13 To:

B + C = 13: A=3,B=5,C=8,D=6

A + D = 13: A=5,B=3,C=6,D=8

A + C = 13: No Solution!

Given that A,B,C and D are whole numbers.Such that A+B=8,B+D=11,B+D=13 and C+D=14

find the value of A,B,C,D ?

Although it looks like a typo, the problem is perfectly acceptable. It just has no solution.

Systems that simplify down to false (for example, equations such as 1 = 0). Such systems have no points of intersection and no solutions.

B + D = 11

B + D = 13

Subtract the above equations from each other.

0 = - 2 False

**In mathematics, you don't understand things. You just get used to them.****If it ain't broke, fix it until it is.**** Always satisfy the Prime Directive of getting the right answer above all else.**

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