A tea vendor has two types of mixture of tea with him. In 64 kg of first mixture ratio of tea to impurity is 5 : 3 and in 72 kg of second mixture the ratio of tea to impurity is 7 : 2. If he mixes these two mixture with 14 kg of pure tea in a large container, then find the ratio of tea to impurity in the large container.
A)3 : 1 B)10 : 3 C)11:4 D)7:3 E)None of these