A merchant has 100 Kg of Sugar, part of which he sells at 7 % profit and the rest at 17 % profit. He gains 10 % in the whole. How much is sold at 17 % profit ?
Choose the correct choice from the following answers:
A) Rs. 70
B) Rs. 36
C) Rs. 27
D) Rs. 67.5
E) Rs. 77.5
et x kg is sold at 7% profit   so (100-x)kg is sold at 17% profit   so the equation is formed as   (x*7/100)+{(100-x)*17/100}=100*10/100   =&gt; x=70   so 100-x=100-70= 
<gadget id="calculator">100-70</gadget>
<output>30</output>
30 kg is sold at 17% profit.   ANSWRs. 77.5R:Rs. 77.5
<result>E</result>
A merchant has 100 Kg of Sugar, part of which he sells at 7 % profit and the rest at 17 % profit. He gains 10 % in the whole. How much is sold at 17 % profit ?