Question

Two lots of onions with equal quantity, one costing Rs 10 per kg and other costing Rs 15 per kg, are mixed together and whole lot is sold at Rs 15 per kg.
What is the profit or lost?
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Answer 1

Step-by-step explanation:

Let each lot of onion-contains x k

onion, then total cost price of these two lots together

= 10x + 15x= 25x

Selling price of whole lot

= 15x(x+x)=15×2x=30x

Profit percentage

= 30x−25x25x×100%

= 5x25x×100% = 20%

Answer 2

Answer:

Let one kg or each variety is purchased. Therefore total cost of 2 Kg. is 10 + 15 = 25/-. The average cost is Rs. 12.50 per Kg.

Selling price is Rs. 15/-

Profit per Kg. = 15/- (-) 12.50 = 2.50

%age Profit = 2.50 / 12.50 x 100 = 20%