Question

A sells an article to B at a gain of 25%, B sells it to
C at a gain of 20% and C sells it to D at a gain of
10%. If D pays 330 for it, how much did it cost to
A?
​

Answer 1

Answer:

Step-by-step explanation:

For the sake of simplicity let's assume the price of article initially is 100x.----(i)

So A sells it to B at 25% gain therefore cost price for B will be 125x. ----(ii)

Similarly, B sells it to C at 20% gain therefore cost price for C is 150x.----(iii)

Likewise, C sells it to D at 10% gain therefore cost price for D is 165x.--(iv)

Now as per the question cost price of article for D is 330 and as per us it is 165x.

Therefore, value of x= 330/165

x= 2

So the cost price of article for A can be determined by putting the value of x in equation (i) = 100 * 2 = 200

You can find the cost price for every person by putting the value of x in the respective equations.