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 is the value of 3 x ^ 2 − 1.8 x + 0.8 for x = 0.6 ? 
Options: a ) − 0.3 , b ) 0.8 , c ) 0.3 , d ) 1.08 , e ) 2.46

SOLUTION: b

PROBLEM: Problem: how many times digit 5 is used while writing numbers from 100 to 1000 ? 
Options: a ) 648 , b ) 300 , c ) 252 , d ) 225 , e ) 290

SOLUTION: e

PROBLEM: Problem: if a * b = 2 a – 3 b + ab , then 5 * 7 + 7 * 5 is equal to : 
Options: a ) 34 , b ) 18 , c ) 72 , d ) 78 , e ) 82

SOLUTION:
a