Question

a vendor sold 100 fresh chicken eggs. eight of them were sold at a profit of 30% while the rest were sold at a loss of 40%. what is the percentage gain or loss on the whole stock?

Answer 1

unit cost price .... x
return = 1.3(8) + .6(92)
= 65.6

percentage = 65.6/100 = 65.6%

So there is a loss of 34.4%

test:
suppose he bought them at $1 per egg
cost price = $100
return = 8(1.30) + 92(.60) = 10.40 + 55.20
= $65.60
He lost $34.40 out of the $100 he spent.
So loss is 34.4%