An expensive watch

A watch when sold at a profit of 6% yields $ 870 more than when it is sold at a loss of 6% . Find the cost price of the watch.

Correct answer:

x =  7250 USD

Step-by-step explanation:

r1=100%+6%=1+1006=1.06 r2=100%6%=11006=0.94  r1 x=870+r2 x 1.06 x=870+0.94 x  0.12x=870  x=0.12870=7250.00000001  x=7250=7250 USD



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