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Question

Out of the total candidates that appeared for a competitive examination, 20% qualified and 10% of the qualified candidates got finally selected. If 290 candidates were finally selected then how many candidates appeared ?

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Solution

Let the number of candidates appeared be x

Then number of candidates who qualified =20% of x= x5

Number of candidate selected =10% of x5=x50

Given, x50=290

Then number of candidates who qualified =20% of x= x5

Number of candidate selected =10% of x5=x50

Given, x50=290

⇒x=14500

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