CBSE Class 10 Answered
Linear equations in 2 variables
Asked by chandrauma2000 | 03 Aug, 2009, 06:13: PM
Expert Answer
suppose x students appeared.
so num who failed is x/4
and
those who passed is 3x/4
suppose 8 more had appeared, then x+8 would have appeared.
6 less passed so, (3x/4)-6 would have passed.
so num who failed would be [x+8]-[(3x/4)-6]=(x+14)-3x/4
then ratio of passed to failed is 2:1
so,
[(3x/4)-6]:[(x+14)-3x/4]=2;1
solving we get,
x=136
Answered by | 03 Aug, 2009, 07:54: PM
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