question_answer

A merchant has 1000 kg sugar, part of which he sells at 8% profit and the rest at 18% profit. He gains 14% on he whole. The quantity sold at 8% profit is :

A)  \[600\,kg\]                  

B)  \[640\,kg\]      

C)  \[400\,kg\]       

D)  \[560\,kg\]

Correct Answer: C

Solution :

By rule of alligation        So ratio of 1st and 2nd part \[=4:6=2:3\] Quantity of 1 st kind \[=\frac{2}{5}\times 1000=400kg\]