Question

how many numbers can you make using the given numerals?
4,6,7,8,9 =
5,3,4,2,1 =
4,3,2,9 =

Answer 1

a) 4,6,7,8,9
they are:- 49876, 48976, 47689, 46789, 47896, 46798, 49768, 49678, 67894, 68974, 67948, 68947, 64897, 64789, 64978, 89467, 89764, 89674, 89746, 87469, 87649, 87946, 98764, 94678, 97684, 98746, 94678, 96847...........................
  
b) with 5,3,4,2,1  nearly 50 numbers or more than that can be formed.
For example- 53421, 34215,42153, 21534, 12345, 53421, 51234, 45321, 23451, 12354, 32451, 12543..................

c) The numbers 4,3,2,9 nearly more than 50 numbers can be formed.
For example- 4329, 3429, 4392, 9432, 9234, 4923, 3492, 9324, 4239, 3249, 3924...............................

Answer 2

a) 49876, 68947, 96847...........etc.
  
b) 53421, 45321, 32451, 12543........ etc.

c) 9324, 4239, 3249, 3924......... etc.