A scientist mixes 10 water in his solution but he is not content with it so he again mixes 10 more w...........

Quant (SSC) Profit and loss

A scientist mixes 10% water in his solution but he is not content with it so he again mixes 10% more water in the previous mixture. What is the profit percentage of the scientist if he sells it at cost price:

15%

21%

18%

16%

छोटे Courses बड़े Results

Master Profit and loss

Prepare through Micro-courses

Try Now

Explanation:

Let Initial Quantity of Solution = 100 litre
After mixing 10% water, Quantity of the mixture = 110 * 110 / 100 = 121 litre
CP of One litre of Solution = Rs.1
Total CP = Rs.100
Total SP = Rs.121
Profit = 121 – 100 = 21
Profit % = 21 * 100/100 = 21%