A man buys two watches for rs4000 and sells one of them at13% profit and the other at18% profit on the whole he earns 16% profit find the ratio of cost prices of the watches
Answers
Answer:
2:3
Step-by-step explanation:
Let say cost Price of one watch = Rs C
then cost price of another watch = Rs 4000 - C
Profit on one watch = 13 %
13 % Profit = (13/100) C = 0.13C
Profit on second watch = 18%
18% Profit = (18/100)(4000 - C) = 720 - 0.18C
Total cost Price = Rs 4000
Total profit = 16%
16% Profit = (16/100) * 4000 = Rs 640
13 % profit on one + 18% profit on other = 16% profit on total
0.13 C + 720 - 0.18C = 640
=> 80 = 0.05C
=> C = 1600
Cost Price of one watch = Rs 1600
Cost Price of other watch = 4000 - 1600 = Rs 2400
Ratio of cost price of watches
1600 : 2400
2:3
Answer:2:3
Step-by-step explanation: two individual profits(13% and 18%) and overall profit is given so we can easily use the alligation method,which will give ratio of COST PRICE directly:
