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'.
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Question: Problem: a number whose fifth part increased by 7 is equal to its fourth part diminished by 7 is ?
Options: a ) 160 , b ) 180 , c ) 200 , d ) 280 , e ) none

Answer: d

Question: 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

Answer: c

Question: Problem: 122 * 252 - 12234 = ?
Options: a ) 15310 , b ) 18870 , c ) 24510 , d ) 18510 , e ) 42510

Answer:
d