Question

A selling price of a table is Rs 840 . if the profit made by seller is 30%. what is cost price of table.​

Answer 1

Answer:

selling price of table= rs. 840

profit made by seller = 30%

so, the cost price of table = 840/30

= 28 rs.

Answer 2

Answer:

Step-by-step explanation:

Let Cost price be Rs.100

Profit=30%of 100

=30/100*100

=Rs.30

Selling price=Cost price+Proft

                    =100+30

                    =Rs.130

Now, using the Unitary method,

Cost Price                           Selling price

100                    I                     130

                         I

x                        I                     840

Cross multiplying both,

130x=840*100

x=84000/130

x=Rs.646.15