Question

if one table sold at rs 3000/- then there is 20% profit what will be the purchase price of the table

Answer 1

Give      S.P = Rs 3000
There is P% = 20%

Now C.P = S.P - Profit amount

Profit amount = S.P * P% = 3000 * 20/100 = Rs 600

So C.P = 3000 - 600 = 2400
Hence the cost price is Rs 2400.

HOPE IT HELPS
ALL THE BEST!

Answer 2

Sp=rs3000
Profit%=20%
Let purchase price (pp) be X
Profit amount (p)=3000-x
Profit %= p/pp*100=20
= 3000-x/X*100=20
Solving the equation for X , we get
X= rs 2500 which is the purchase price of the table.