CBSE Class 10 Answered
sir/maam
Asked by | 03 Jul, 2009, 08:12: PM
Expert Answer
o.k.
so now the eqns become
100u+30v=6
75u+75v=8
so multiplying the first eqn by 5 and second eqn by 2
we get
500u+150v=30
150u+150v=16
subtracting we get,
350u=14
so
u=1/25
and
v=1/15
so
x+y=25
x-y=15
again solving,
we get,
x=20
y=5
Answered by | 03 Jul, 2009, 09:57: PM
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