Problema Solution
A shopkeeper bought locks at the rate of 8 locks for 34 and sold them at the rate of 12 locks for rs 57.calculate his gain percent and the number of locks he should sell to earn a profit of rs 45.
Answer provided by our tutors
Here is the answer to your question.
C.P. of 8 locks = Rs 34
Thus, the number of locks that should be sold by the shopkeeper is 90.