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: how many odd 3 - digit integers greater than 800 are there such that all their digits are different ?
Options: a ) 40 , b ) 56 , c ) 72 , d ) 81 , e ) 104

SOLUTION: c

PROBLEM: Problem: find out the square of a number which when doubled exceeds its one fifth by 9 ?
Options: a ) 16 , b ) 25 , c ) 19 , d ) 26 , e ) 17

SOLUTION: b

PROBLEM: Problem: if - 2 and - 3 are negative integers , then - 2 * - 3 + 2 is
Options: a ) - 5 , b ) 8 , c ) - 6 , d ) - 3 , e ) - 8

SOLUTION:
b