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 per Kg?
Pick one.
A) 3 : 7
B) 5 : 7
C) 7 : 3
D) 7 : 5
E) none

Rationale: solution required ratio = 3.50 : 1.50 = 35 : 15 = 7 : 3 . answer c
Answer: C