The price of rice sold at Rs. 30 per kg. During last month, the cost of rice was Rs. 25 per kg. Find by how much percent of a family reduces its consumption, so as to keep the expenditure fixed?
1
11\(\frac{1}{{9}}\)%
2
12\(\frac{2}{{5}}\)%
3
16\(\frac{2}{{3}}\)%
4
9\(\frac{2}{{3}}\)%