sohailmbaprep wrote:Mr X buys some apples at 5 per rupee from one trader ,and a similar quantity at 7 per rupee from another trader.He mixes both the varieties, and sells the whole at 6 per rupee.What is the profit or loss % that he makes ?
is it a mixture problem ?? how can i solve this
Mr X buys some apples at 5 per rupee from one trader.
Let's say that he buys x apples.
This means his cost will be x/5 rupee
Mr X buys a similar quantity at 7 per rupee
I'm assuming that "similar" means "equal" here.
So, he buys x apples
This means his cost will be x/7 rupee
So, his total cost is x/5 + x/7 rupee
Let's combine the fractions to get a
total cost of
12x/35 rupee
Mr X sells the whole at 6 per rupee.
He has 2x apples
At 6 per rupee, he will make
2x/6 rupee
Expense =
12x/35 rupee
Revenue =
2x/6 rupee
To compare these, we'll need to write them with a common denominator of 210 to get:
Expense =
72x/210 rupee
Revenue =
70x/210 rupee
As you can see, Mr. X loses money.
To calculate the % loss, we calculate (100)(72-70)/72
We get about 2 56/72% or about 2.8%
Cheers,
Brent
