The ratio in which tea costing Rs 192 per kg is to be mixed with tea costing Rs 150 per kg so that t...........

Explanation:

CP of first tea = Rs. 192 per kg.

CP of Second tea = Rs. 150 per kg.

Mixture is to be sold in Rs. 194.40 per kg, which has included 20% profit. So,

SP of Mixture = Rs. 194.40 per kg.

Let the CP of Mixture be Rs. X

per kg. Therefore,

X+20% of X=SP

6X/5=194.40

6X=194.40×5

X=Rs.162 per kg.

Let N kg of first tea and M kg of second tea to be added.

Now, Using Alligation, We get,

N/M = 162-150 /192/162

= 12/30 = 2/5 = 2:5

Hence, option 2 is the correct answer.