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'.

Q: Problem: what is the remainder when 14,451 × 15,654 × 16,783 is divided by 5 ? 
Options: a ) 1 , b ) 3 , c ) 2 , d ) 4 , e ) 5

A: c
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Q: Problem: a father said his son , ` ` i was as old as you are at present at the time of your birth . ` ` if the father age is 32 now , the son age 5 years back was 
Options: a ) 11 , b ) 17 , c ) 11 , d ) 19 , e ) 99

A: a
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Q: Problem: if 40 % of a number is equal to 2 / 3 of another number , what is the ratio of first number to the second number ? 
Options: a ) 5 / 3 , b ) 3 / 5 , c ) 3 / 7 , d ) 5 / 7 , e ) 7 / 9

A:
a
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