Question

A man sells a sofa for rupees 3210 making a profit of 7%.what would have been his profit %if he had sold it for rupees 3360

Answer 1

Answer:

12.5%

Step-by-step explanation:

C.P.= 3210 - (3210×7)/100

C.P.= 2985

Gain%=( (3360-2985)×100)/2985

Gain%=12.5%

Answer 2

Answer:

Step-by-step explanation:

Let the cost price be x

Therefore, we know profit %

= (Selling price - cost price)×100/cost price

=(3210-x)(100)/x = 7

321000 - 100x / x = 7

321000 - 100x = 7x

321000 = 107x

x = 321000/107 = 3000

So x = 3000

If selling price is 3360,

Profit % = (3360-x)(100)/x

(3360 - 3000)(100)/3000

360/30

=12%

Hope this helps you.....:)