A person bought 25 pens for Rs.25 . He sold 14 of them at a loss of 50%. He wants to gain 10% on the whole. Then his gain percent on the remaining pens should be:
Answer & explanation
Correct answer: option 1
Price of 25 pens = Rs.25
Price of 14 pen = Rs.14
ATQ,
S.P. 14 pen @50% loss = Rs.7
To earn 10% profit on all pens,
S.P. should be Rs.27.5 (i.e. 110% of 25)
Now profit is to be earn on remaining 11 pens = Rs.9.5
Therefore,
gain % on the remaining 10 pens = \(\frac{9.5}{11}\) × 100 = 86\(\frac{4}{11}\)%