Question

Leela cheats to the extent of 11/2% while buying as well as selling, by using false weight. Find her total gain%.
1. 11.30%
2. 12.25%
3. 13.37%
4. 12.52%

Answer 1

Correct Answer - Option 1 : 11.30%

Given∶

Common gain% = 11/2%

Formula Used∶

Gain% = [(100 + common gain%)²/100] – 100

Calculation∶

Common gain = 11/2%

By using formula, we get

Gain% = [(100 + 11/2)²/100] – 100

⇒ [{(200 + 11)/2}²/100] – 100

⇒ [(44521/4)/100] – 100

⇒ [(44521/400)] – 100

⇒ 4521/400 = 11.30%.

∴ Her total gain% is 11.30%.