Question

A merchant has 1000 kg. Of sugar, part of which he sells at 10 % profit and the rest at 30% profit. He gains 15 % on the whole. The quantity sold at 20% profit is :

Answer 1

Answer:

Let the sugar sold at 10% gain = x

Therefore, Sugar sold at 20% gain = (1000 - x)

Let CP of sugar = Rs.y per kg

Total CP = Rs.1000y

Therefore,

110/100 * x* y + 120/100* 1000-x * y = 115/100* 1000y

110xy + 120000y-120xy= 115000y

10xy= 5000y

10x= 5000

x = 500 kg

Quantity sold at 20% profit

= 1000 - 500 = 500 kg

Step-by-step explanation:

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