 Hello and welcome to the session. In this session we discussed the following question which says by selling an Almeera for rupees 200 a man gains one fourth of its cost price find its cost price. Before we move on to the solution let's recall the formula for gain. Gain is equal to the selling price sp minus the cost price cp. This is the key idea for this question. Let's proceed with the solution now. Now since we need to find the cost price of the Almeera so we assume let the cost price that is cp of an Almeera be equal to rupees x. Now in the question is given that the gain that the man gains by selling the Almeera is one fourth of its cost price so we have gain is equal to one upon four into the cost price that is rupees x. So this is equal to rupees x upon four is the gain. Now since from the key idea we have that gain is equal to sp minus cp that is the selling price minus the cost price. So from here we get selling price is equal to gain plus cost price. Now in the question we have that the selling price of an Almeera is given as rupees 200 so this is equal to rupees 200 and we have got the gain as rupees x upon four and the cost prices rupees x. So we will substitute all these values in this. So we get rupees 200 is equal to rupees x upon four plus rupees x or this means we have 200 is equal to x upon four plus x that is 200 is equal to 5x upon four which means that 5x is equal to 200 into 4. So this gives us 5x is equal to 800. Now x would be equal to 800 upon five law five 160 times is 800 therefore we get x is equal to 160 and we had assumed x to be the cost price of an Almeera. So we get the cost price or cp of the Almeera is equal to rupees 160. So final answer is rupees 160. This completes the session. Hope you have understood the solution for this question.