Question

Meera bought two cows for Rs 10000.If she sold one at a loss of 30℅ and other at a profit of 30℅ and then she found that each cow was sold for the same price, find the percentage of profit or loss in whole transaction.

Answer 1

Answer:

Loss% = 9%

Step-by-step explanation:

Step-by-step explanation: Here, CP of both cows=Rs.10,000 Let CP of one cow be Rs.x CP of another cow be Rs.(10,000-x) Now, CP=x ,loss%=30% SP1 = CP(100 - L%)/100 = x(100 - 30)/100 = 70x/100 =7x/10 Again, CP =Rs.(10,000 - x), Profit%=30% SP2 = CP(100 - P%)/100 = (10,000 - x)(100+30)/100 = 130 (10,000-x)/100 = (130000 - 13x)/10 According to the question, SP1 = SP2 7x/10 = 130000 -13x 7x+13x = 130000 20x = 130000 x=6500 Then, SP1 = (7× 6500)/100 =Rs4550 Total SP=2×4550 = Rs.9100 Since, CP>SP, loss is made loss = CP- SP=Rs.(10,000- 9100)=Rs.900 loss%= (loss/ CP)×100% = (900/10,000)×100 = 9% ans