Tea worth Rs. 126 per kg and Rs. 135 per kg are blended in a 1:1:2 ratio with a third type. If the combination costs Rs. 153 per kg, the third variety's price per kilogramme will be:
A. Rs. 169.50
B. Rs. 170
C. Rs. 175.50
D. Rs. 180
Answer:C
Tea worth Rs. 126 per kg and Rs. 135 per kg are blended in a 1:1:2 ratio with a third type. If the combination costs Rs. 153 per kg, the third variety's price per kilogramme will be:
A. Rs. 169.50 B. Rs. 170 C. Rs. 175.50 D. Rs. 180
Explanation: Because the first and second variety are combined in equal amounts. As a result, their average cost is Rs. 126 + 135 = Rs. 130.50 2. So, the mixture is made by combining two kinds, one priced at Rs. 130.50 per kg and the other at, say, Rs. x per kg, at a ratio of 2:2, or 1:1. We need to figure out what x is. x - 153/22.50 = 1 x - 153 = 22.50 x = 175.5