35 kg of type A sandal powder, which costs Rs. 614 per kg, was mixed with a certain amount of type B sandal powder, which costs Rs. 695 per kg. Then the mixture was sold at the rate of Rs. 767 per kg and 18% profit was earned. What was the amount (in kg) of type B sandal powder in the mixture ?
A. 24 kg
B. 28 kg
C. 32 kg
D. 36 kg
Answer: Option B
Solution(By Examveda Team)
Cost price of mixture$$\eqalign{ & = \frac{{{\text{Sale price}}}}{{\left( {100 + {\text{gain }}\% } \right)}} \times 100 \cr & = \frac{{767}}{{118}} \times 100 \cr & = {\text{Rs}}{\text{. 650}} \cr} $$
Ratio = 5 : 4
∴ Quantity of A type of sandal is 35 kg
∴ 5x = 35 kg
∴ x = 7 kg
Thus B type sandal = 7 × 4 = 28 kg
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A wrong in number 965 which correct number is 695.