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: a " palindromic integer " is an integer that remains the same when its digits are reversed . so , for example , 43334 and 516615 are both examples of palindromic integers . how many 6 - digit palindromic integers are both even and greater than 500000 ?
Options: a ) 160 , b ) 200 , c ) 240 , d ) 300 , e ) 480
b

Problem: a cyclist rides a bicycle 8 km at an average speed of 10 km / hr and again travels 10 km at an average speed of 8 km / hr . what is the average speed for the entire trip ?
Options: a ) 9.28 , b ) 8.48 , c ) 8.78 , d ) 8.98 , e ) 9.18
c

Problem: if ( n + 2 ) ! = 2550 ( n ! ) ; find ' n '
Options: a ) 38 , b ) 35 , c ) 49 , d ) 43 , e ) 34
c