Question

a shopkeeer sold at the gain 15%. if it had been sold for 90rs. more , 20% would have been gained. find the cost price of the fan

Answer 1

Answer:

Step-by-step explanation:

Answer

Let the CP be RS 100

When gain=15%; SP = (100+15)=RS 115

When gain = 20% ; SP=(100+20)=RS 120

Difference in the selling price of the fan= 120-115=RS 5

Applying unitary method:

When sold for RS 5 , CP = 100

When sold for RS 90, CP = 100/5*90= RS 1800

Answer 2

Answer:

Answer:

Step-by-step explanation:

Answer

Let the CP be RS 100

When gain=15%; SP = (100+15)=RS 115

When gain = 20% ; SP=(100+20)=RS 120

Difference in the selling price of the fan= 120-115=RS 5

Applying unitary method:

When sold for RS 5 , CP = 100

When sold for RS 90, CP = 100/5*90= RS 1800

Step-by-step explanation:

Hope this answer will help you.