How many 4 digits number can be formed by using set 0,1,2,3,4,5,6,7 which is divisible by 25 and repetition of digit is not allowed?
Answers
Answered by
0
0=25×40=1000
1= 25×41=1025
2=25×42=1050
3=25×43=1075
...... multiply by 25 44,45,46,47 and get 4,5,6,7
1= 25×41=1025
2=25×42=1050
3=25×43=1075
...... multiply by 25 44,45,46,47 and get 4,5,6,7
Similar questions