A) 4
B) 8
C) 10
D) 20
Correct Answer: C
Solution :
[c] Let 7 kg of 1st kind of tea be mixed with 3 kg of 2nd kind. CP of \[(7+3)\] kg mixture \[=(18\times 7+13\times 3)=\text{Rs}.\,\,165\] SP of 10 kg mixture \[=\text{Rs}.\,\,(18.15\times 10)\] = Rs. 181.50 Gain per cent \[=\left( \frac{16.50}{165}\times 100 \right)=10%\] |
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