Question

arnav bought a disinger clock at a the same price he sold the wall clock at 10% profit and sold the wall clock at 5% profit. if if the total selling price of the items was 4300 find their cost price

Answer 1

Cost Price of wall clock Rs.1820

Cost Price of watch Rs.3250

Solution:

Given:

Total purchased price of wall clock and watch = Rs.5070

Profit on wall Clock = 10 %

Profit on watch = 15 %

Total Profit = Rs.669.50

Let price of watch = B

Let price of clock = 5070 – B

(B \times 15 \%)+[(5070-B) \times 10 \%]=669.5(B×15%)+[(5070−B)×10%]=669.5

0.15B + 507 - 0.10B = 669.5

0.05B + 507 = 669.5

0.05B = 669.5 - 507= 162.5

B = \frac{162.5}{0.05}

0.05

162.5

= 3250

Price of clock = 5070 - 3250 = 1820

Price of watch = 3250