Question

Vendor bought 100orange for 200.he sold 20 of them at the gain of 5 percent. At what gain percent must je sell the remainder so as to gain 30 percent on the whole

Answer 1

CP of one orange =200/100=2

CP of 20 orange =40

SP of 20 orange= 40*105/100=4*105/10

=42

overgain of 30 percent=200*130/100

=260

SP of remaining orange=260-42=218

profit =218-160=58

profit %=58/160 *100=36.25%