in a competitive examination in state A,6% candidates got selected from the total appeared candidates.state B had an equal number of candidates appeared and 7% candidates got selected with 80 more candidates got selected than A.what was the number of candidates appeared from each state?
a.7600
b.8000
c.8400
d.data inadequate

• b
  8000 each
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• [(6/100)*x ]+80 = (7/100)*x
  80= 7x/100-6x/100
  80=x/100
  x=8000
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• According to question, 1% of the total appeared =80
  
  Since 7% for B= 6% for A+ 80
  
  Hence total students appeared = 8000
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• 8000
  (6/100)x=y;
  (7/100)x=y+80;
  if we solve these 2 eqns we get x=8000.
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• (b)8000
  difference in %=7-6=1%
  1%=80candidates
  =>100%=8000 candidates from each state
  
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• B.8000
  6x/100+80=7x/100
  x=8000
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• let total candidates be x.
  Then selected candidate from state A = 0.06x
  selected candidates from state B = 0.07x
  
  Now 0.07x = 0.06x+80
  which makes x=8000
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