By selling 90 balls for ₹160 a person loses by 20%. The number of balls, which should be sold for ₹ 96 so as to gain 20% is:
Answer & explanation
Correct answer: option 1
20% = \(\frac{1}{5}\)
@Rs.160:
No. of balls that should be sold to cover 20% loss = 90 × \(\frac{4}{5}\)
No. of balls that should be sold to gain 20% profit = 90 × \(\frac{4}{5}\) × \(\frac{5}{6}\) = 60
No. of balls that should be sold for Rs. 160 to gain 20% = 60
No. of balls that should be sold for Rs. 96 to gain 20% = 60× \(\frac{96}{160}\) = 36