self Maths Puzzle

if none of the figures 2,4,5,7,8,0 be repeated,how many different numbers of 4 digits can be formed wiyh them.?

Read Solution (Total 4)

self Other Question

n! has 13 zeros.the highest and least values of n? (((13!)^16)-((13!)^8))/(((13!)^8)+((13!)^4))=a
then what is the units digit for a/((13!)^4)=