25% of the candidates who appeared in an examination failed to qualify and only 450 candidates qualified. The number of candidates, who appeared in the examination, was
Options:
A .  550
B .  600
C .  500
D .  700
Answer: Option B Answer: (b)Clearly, 75 candidates qualify75% of appearing candidates = 450Number of appearing candidates= ${450 × 100}/75 = 600$
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