100kg of an alloy A is mixed with 200 kg of alloy B. If alloy A has lead and tin in the ratio 5:3 and alloy B has tin and copper in the ratio 2:3, then the amount of tin in the new alloy is?
Choose the correct choice from the following options.
A) 100.6kg
B) 120.3kg
C) 117.5kg
D) 110.8kg
E) 114kg
Quantity of tin in 100kg of A = 100*3/8= 
<gadget id="calculator">100*3/8</gadget>
<output>75/2 = around 37.5</output>
37.5kg   Quantity of tin in 200kg of B= 200*2/5= 
<gadget id="calculator">200*2/5</gadget>
<output>80</output>
80kg   Quantity of tin in the new alloy= 37.5+80= 
<gadget id="calculator">37.5+80</gadget>
<output>117.5</output>
117.5kg   Answer is 117.5kg
<result>C</result>
100kg of an alloy A is mixed with 200 kg of alloy B. If alloy A has lead and tin in the ratio 5:3 and alloy B has tin and copper in the ratio 2:3, then the amount of tin in the new alloy is?