Answer:
345 !
Step-by-step explanation:
SP = 285
loss = 5 %
CP= ( SP * 100 ) / ( 100 - percentage loss)
CP= 28500 / 95 = 300
~~~~~~~~~~~~~~```
CP= 300
profit = 15%
SP = [(100 + Profit %) / 100]*CP.
SP= 100 + 15 / 100 x 300
= 115 / 100 x 300
= 345
I hope im right!!!