4. 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?
Solution:
Cost
of 1 Kg pulses of 1 kind 15 Cost of 1 Kg
pulses of
2nd
kind 20
Mean Price Rs 16.50
3.50 1.50
Required
ratio =3.50 : 1.50 = 35:15 = 7:3.
