There are two types of grains. Cost of I type of grain is Rs. 30 per kg and cost of II type of grain is Rs. 40 per kg. Both the grains are mixed in the ratio of 4 ∶ 9. If one – half of the mixture is sold at Rs. 36 per kg and the remaining at the rate of Rs. 40 per kg. Find the profit percentage.
1
3.14 %
2
4.145 %
3
2.91 %
4
6.71 %
5
1.34 %