In what ratio must a grocer mix two varieties of tea worth Rs. 60 a kg and Rs. 65 a kg so that by selling the mixture at Rs. 68.20 a kg he may gain 10%?
Answer: Option A
S.P. of 1 kg of the mixture = Rs. 68.20, Gain = 10%.
By the rule of alligation, we have:
Required ratio = 3 : 2.