Question

On selling 300 apples at 3 for Rs 10, Prakhar gained Rs 400.At what rate did he buy the apples?
What was his gain percent?

Answer 1

Answer:

CP of 300 apples = Rs 50 per dozen

300 apples =  

12

300

 dozen

i.e 25 dozen

1 dozen = Rs 50

25 dozen = Rs (25×50)

= Rs 1250

∴ CP of 300 applies = Rs 1250

overall profit % should be 12%

∴ profit =  

100

12×CP

=

100

12×1250

= Rs 150

∴ SP should be 1250 + 150 = Rs 1400

Now,

SP of 200 apples = Rs 50 per 10 apple

SP of 200 apples =  

10

50

×200= Rs 1000

Now he has to make Rs 400 (1400 - 1000) by selling

last 100 apples

∴ SP of 100 apples = Rs 400

SP of 1 apple =  

100

400

= Rs 4

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