Task: Question Answering
Input (English): Question: In what ratio must a grocer mix two varieties of pulses costing Rs. 15 and Rs. 20 per kg respectively so as to get a mixture worth Rs. 16.50 kg?

 Option A: 3 : 7

 Option B: 5 : 7

 Option C: 7 : 3

 Option D: 7 : 5

 Option E: 6 : 5
Output (English): Option C