TASK DEFINITION: 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'.
PROBLEM: Problem: what will be the vulgar fraction of 0.70 
Options: a ) 3 / 5 , b ) 7 / 10 , c ) 3 / 2 , d ) 3 / 7 , e ) 3 / 8

SOLUTION: b

PROBLEM: Problem: for what values of k will the pair of equations 4 ( 3 x + 4 y ) = 48 and kx + 12 y = 30 does not have a unique solution ? 
Options: a ) 12 , b ) 9 , c ) 3 , d ) 7.5 , e ) 2.5

SOLUTION: b

PROBLEM: Problem: a man is 30 years older than his son . in two years , his age will be twice the age of his son . the present age of this son is 
Options: a ) 28 years , b ) 22 years , c ) 23 years , d ) 24 years , e ) 26 years

SOLUTION:
a