Question

A shopkeeper sold a laptop at gain of 20 percentage had it been sold RS 1000more the gain would have been 25percentage find the CP of the laptop

Answer 1

Answer:

rupees - 20000

Step-by-step explanation:

Let the cp of the laptop=rs x

Gain%-20%

Sp of the laptpo=100+gain%\100*x

100+20/100*x=120/100x

Sold for rs 1000more than so = 6/5 * x + 1000

Gain%-25%

So 100+25/100x=125/100x

125/100 * x = 120/100 * x + 1000

125-120/100=1000

5x / 100 = 1000

1/20 * x = 1000

X=1000*20/1

20000/1

20000

Rs20000