Question

mangoes are bought at 10 rupees per 100. the rate 100 at which they must be sold so that the gain on 100 rupees may be equal to the selling price of 250 mangoes is

Answer 1

Solution :-

In Rs. 10 mangoes can be bought = 100
In Rs. 100 mangoes can be bought = 1000

If the fruit merchant sold 1000 mangoes, he would gain equal to the selling price of 250 mangoes.

Now, 
Let Selling price of 1 mango be Rs 'x'
Therefore, Gain = 250x
Gain = Selling Price - Cost Price
250x = 1000x - 100
250x - 1000x = - 100
-750x = - 100
x = 100/750
x = 2/15
So, selling price of 1 mango is Rs. 2/15

Therefore, selling price of 100 mangoes = 2*100/15
= 200/15
= Rs.40/3
 
Answer.