Answer:
41.66%
Step-by-step explanation:
Total profit we have to gain =25/100×240 =60
Cost of one item = 240/100 =2.40
Also given that 1/4 of total good are sold with 10% profit which mean profit = =6.
(Here 1/4 of 100 is 25 and cost per unit is 2.4)
Total money to be recovered from 75(100-25) items =60-6 =54
Let profit percentage to be charged on 54 items be p%.
Original cost =2.4×54 = 129.6
Profit amount =54 =129.6×p/100
p =41.66% =percentage of profit on rest of the goods.