A wholesaler purchased an electric item for Rs 2.700 and sold to retailer at
10% profit. The retailer sold it at 20% profit to a consumer. How much did the consumer pay for it?

5.96

Step-by-step explanation:

G% = G

       ------  * 100

        CP

The gain percent was 10 and the CP was 2.7 so if you substitute the numbers in you get the gain as .27.

10 = G/2.7 *100

10*2.7 /100=g

.27=g

Then you add .27 and 2.7 since it was a profit. .27+2.7= 4.97

So now the Cost price for the retailer is 4.97. He sold it to the consumer for a 20% profit.

20 = G

      --------    * 100

       4.97

If you solve the equation you get .994.

You add it again since it was a profit, you get = 5.96

So the consumer had to pay ₹ 5.96