arithmetic - a trader mixes three varieties of rices costing rs 50 rs 20 and rs 30 per kg in the ratio 2 4 3 in terms of weight and sells the mixture at rs 33 per kg what percentage of profit does he make - skillgun

Suppose he bought 2 kg, 4 kg and 3 kg of the three varieties.
C.P. of 9 kg = Rs. (2 x 50 + 4 x 20 + 3 x 30) = Rs. 270
S.P. of 9 kg = Rs. (9 x 33) = Rs. 297
Profit% = 27/270 x 100 % = 10%