vaibhav101 wrote:Q.1 A man buys 2 dozen bananas at $16 per dozen. After selling 18 bananas at the rate of $12 per dozen, the shopkeeper reduced the rate to $4 per dozen. The % loss is
A 25.2
B 34.2
C 36.5
D 37.5
E 40
You can also treat this as a weighted average.
Loss on bananas bought for $16/dozen and sold for $12/dozen = (16-12)/16 = 25%
Loss on bananas bought for $16/dozen and sold for $4/dozen = (16-4)/16 = 75%
18 bananas were sold at $12/dozen and the remaining 6 were sold at $4/dozen. So there were three times as many bananas sold at a 25% loss than at a 75% loss. Call the distance between each loss and the average loss, 'x' and '3x.'
25---------Average Loss------------------75
Gap: x----------------------------3x---------
Distance from 25 to 75 = 50. x + 3x = 4x.
4x = 50 and x = 12.5
25 + 12.5 = 37.5. The answer is
D