Capgemini Company Numerical Ability Profit and Loss

Two electronic musical instruments were purchased for Rs. 8000. The first was sold at a profit of 40% and the second at a loss of 40%. If the sale
price was the same in both the cases, what was the cost price of the electronic musical instruments?

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Capgemini Other Question
Henna invested Rs.5000 at 12% simple interest p.a. The interest she will receive after 2 years is: At the college entrance exam, a candidate is admitted according to whether he has passed or failed the
test. Of the candidates who are really capable, 80 % pass the test and of the incapable, 25 % pass the test.
Given that 40 % of the candidates are really capable, then the proportion of the really capable students who
can pass the test to the total students who can pass is about