SOLUTION: A trader purchased a wall clock and a watch for Rs. 5070. He sold them making a profit of 10% on the wall clock and 15% on the watch. He earns a profit of 669.50. Find the cost of

Algebra ->  Finance -> SOLUTION: A trader purchased a wall clock and a watch for Rs. 5070. He sold them making a profit of 10% on the wall clock and 15% on the watch. He earns a profit of 669.50. Find the cost of       Log On


   

Question 1087332: A trader purchased a wall clock and a watch for Rs. 5070. He sold them making a profit of 10% on the wall clock and 15% on the watch. He earns a profit of 669.50. Find the cost of the wall clock and that of the watch.
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
c, clock
w, watch

system%28c%2Bw=5070%2C0.10c%2B0.15w=669.5%29
Two linear equations in two unknown variables. Use either substitution or elimination method.