9514 1404 393
Answer:
Rs 400
Step-by-step explanation:
The selling price was ...
cp(1 -10%)
where cp is the cost price. If we add Rs 60 to that, then the selling price would be ...
cp(1 -10%) +60 = cp(1 +5%)
60 = 15%·cp . . . . . . . . . . . . . . . subtract 90%·cp
60/0.15 = cp = 400
The cost of the shirt was Rs 400.