If 60 kg of sugar is bought at Rs32/kg , total money spent to buy it is 60x 32= Rs1920
Assume 48 kg of sugar is bought at Rs x/kg , so that total money spent on buying it is Rs.48x
It is given that the total sugar 60 +48=108 kg is sold at Rs.28/kg, earning a net sum of 108 x 28 = Rs 3024
Since there has been no profit or loss in the deal, the total money spent in buying 108 kg of sugar should be equal to the total earnings due to its sale. Writing this in the form of an equation:
1920 + 48x = 3024
or    48x = 3024-1920=1104
or    x= 1104/48=23
Hence 48 kg of sugar was bought at Rs23/kg
Answer: A : Rs 23 per kg