Roland 2

Roland sold his watch at a 15% loss. If he had sold it for 210 USD more, he would have made a profit of 20%. Find the cost of price of the watch.

Correct answer:

x =  600 USD

Step-by-step explanation:

r1=100%15%=110015=0.85 r2=100%+20%=1+10020=1.2  x r1+210=x r2 x 0.85+210=x 1.2  0.35x=210  x=0.35210=600  x=600=600 USD



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