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: if one root of the equation 2 x ^ 2 + 3 x k = 0 is 5 , what is the value of k ?
Options: a ) 65 , b ) 79 , c ) 68 , d ) 87 , e ) 90
answer:
a

question:
Problem: the unit digit in the product ( 784 x 618 x 917 x 463 ) is :
Options: a ) 5 , b ) 9 , c ) 16 , d ) 2 , e ) 42
answer:
d

question:
Problem: if you wish to live to be 100 years old ( hypothetically ) , you must consume 500 calories less than your average daily allowance for your age . if you are in your 60 ' s , and your average daily allowance is 2000 calories per day , how many calories are you allowed in a week ?
Options: a ) 7000 , b ) 10500 , c ) 14000 , d ) 12000 , e ) 3500
answer:
b