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 two - digit numbers yield a remainder of 1 when divided by both 6 and 15 ? 
Options: a ) 0 , b ) 1 , c ) 2 , d ) 3 , e ) 4

SOLUTION: c

PROBLEM: Problem: find the smallest positive integer n such that 11 n - 1 is divisible by 105 . 
Options: a ) 3 , b ) 4 , c ) 5 , d ) 6 , e ) 7

SOLUTION: d

PROBLEM: Problem: a trailer carries 3 , 4 and 5 crates on a trip . each crate weighs no less than 1250 kg . what is the maximum weight of the crates on a single trip ? 
Options: a ) 1250 , b ) 6250 , c ) 600 , d ) 7500 , e ) 375

SOLUTION:
b