Practice | Hashtable

1. 7 kg of tea costing Rs. 280 per kg is mixed with 9 kg of tea costing Rs. 240 per kg. The average price per kg of the mixed tea is ?

A. Rs. 255.80

B. Rs. 257.50

C. Rs. 267.20

D. Rs. 267.50

Solution:

According to the question,
Average price of mixed tea

\begin{aligned} = \frac{280 \times 7 + 240 \times 9}{16} \\ = \frac{1960 + 2160}{16} \\ = \frac{4120}{16} \\ = Rs . 257 .50 \end{aligned}

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