Question

ramesh sold a tv set for rs 2,100. on selling this tv he gained a profit of 40%. find the cost price of tv set.​

Answer 1

Question :

Ramesh sold a TV set for rs 2,100. On selling this TV, he gained a profit of 40%. Find the cost price of TV set.

Answer :

Option C) Rs.1500 is the correct answer

The Cost Price of the TV set is Rs.1500.

Given ;

Selling price (S.P) of the TV set = Rs.2100

Profit % = 40

To find :

The cost price (CP) of the TV set

Solution :

Let the Cost Price of the TV be Rs.x

Hence, profit = Selling price - Cost price

= Rs.(2100 - x)

We know that ,

Profit % = (Profit / C.P) × 100

=> 40 = (2100-x/x ) × 100

=> 40 / 100 = (2100-x) /x

=> 2/5 = (2100-x) /x

=> 2x / 5 = 2100 - x

=> 2x / 5 + x = 2100

=> (2x+5x)/5 = 2100

=> 7x/5 = 2100

=> 7x = 2100 × 5

=> 7x = 10500

Hence, x = 10500/7

x = 1500

Hence, the Cost Price of the TV set is Rs.1500.

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