'By mixing two brands of tea and selling the mixture at the rate of Rs. 177 per kg, a

"By mixing two brands
of tea and selling the mixture at the rate of Rs. 177 per kg, a shopkeeper
makes a profit of 18%. if to every 2 kg of one brand costing Rs. 200 per kg,
3 kg of the other brand is added, then how much per kg does the other brand
cost?
a. Rs. 110
b. Rs. 120
c. Rs. 140
d. none of these"

mixture