a trader purchases a watch and wall clock for rupees 390 he sells them making a profit of 10% on the watch and 15% on the wall clock he earns a profit of rupees 50 1.50 the difference between the original price of the wall clock and the watch is equal to...
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Given :
A trader purchases a watch and a wall clock for 390 rupees. He sell them making a profit of 10 % on the watch and 15% on the wall clock. He earns a profit of 51.50 rupees.
To find :
What is the difference between the original prices of the wall clock and the watch is equal to.
Calculations :
→ x/10 + 15 (390 - x)/100 = 51.50
→ 10x + 5850 - 15x = 5150
→ 5x = 700
→ 700/5x
→ 140
Let's, substitute the above equation :
→ 390 - 140
→ 250
Therefore, the cost of the clock is equal to 250.
→ 250 - 140
→ 110
Therefore, 110 is difference between the original price of the wall clock.
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