instruction:
In this task, you need to answer the given multiple-choice question on the general math. Classify your answers into 'a', 'b', 'c', 'd', and 'e'.
question:
Problem: gold is 10 times as heavy as water and copper is 6 times as heavy as water . in what ratio should these be mixed to get an alloy 8 times as heavy as water ? 
Options: a ) 3 : 2 , b ) 1 : 1 , c ) 3 : 1 , d ) 5 : 2 , e ) 4 : 3
answer:
b


question:
Problem: in a urban village of india named ` ` owlna ' ' , 70 % people have refrigerator , 75 % people have television , 65 % people got computers and 95 % got air - conditionor . how many people ( minimum ) got all these luxury . 
Options: a ) 5 % , b ) 7 % , c ) 3 % , d ) 9 % , e ) 15 %
answer:
a


question:
Problem: what is the tenth digit of ( 4 ! * 3 ! + 4 ! * 2 ! ) / 3 ? 
Options: a ) 5 , b ) 7 , c ) 9 , d ) 1 , e ) 0
answer:

c