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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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Nearly, you just needed to use the other number.
Male:Female :: 6:5, so you want to multiply by 5/11 instead.
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It wanted to be normal.
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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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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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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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