Question

After selling TV for 9900,the profit gained is 10%.The cost price of TV is

Answer 1

Answer:

cost price of t.v = ₹9000

Step-by-step explanation:

s.p of t.v - ₹9900

gain-10%

c.p - s.p ×100/(100+gain)

=9900×100/(100+10)

=990000/110= 9000

Answer 2

Calculating Cost Price when Selling Price and Profit gained is given.

Solution : Cost price of televison having selling price of 9900 and profit gained of 10% is Rs 8181.82.

Explanation:

Given that

Selling Price of television = Rs 9900

Profit gained by selling television = 10%

Need to determine cost price of television

let assume cost price of television by represented by variable $x$.

As profit gain is 10% , it means profit gain is 10% of cost price

=> profit gain = 10% of $x$ = (10/100)× $x$ = $x$/10

Selling price = cost price + profit gain

On substituting given value of Selling price , assumed value of cost price and calculated value of profit gained in terms of cost price we get

9900 = $x$ +($x$ /10 )

On solving above equation for $x$

9000 = (10$x$  + $x$ )/ 10

=> 9000 × 10 = 11$x$

=> 90000/11 = $x$

=> $x$  = 8181.818 ≈ 8181.82

Hence Cost price of television = Rs 8181.82 .

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