A radio sold with a discount of 25% on the marked price leads to a loss of Rs. 200. If it was sold at a discount of 10%, it would have yield a profit of 8%. Find the cost price and marked price of the radio?
Profit= marked-cost
a. the first discount
-200= .75marked-cost
b.
1.08cost=.9marked-cost
or 0=.8marked-2.08cost
now you have two equations, two unknowns.
solve.