Clinton is having two varieties of tea. First variety of tea costing Rs. 25 per kg while second variety of tea is Rs. 32 per kg. Find how much quantity of 1st variety should he added to 30 kg of 2nd variety such that the cost of the mixture of both varieties be worth Rs. 27 per kg?
1
70 kg
2
75 kg
3
80 kg
4
72 kg
5
77 kg