Question

how many different numbers of six digits can be formed by using the digits 2,1,7,8,0,4? How many of them will be divisible 5.

Answer 1

nos which have 5 or 0 at last is divisible by 5 so last nos is 0 and other nos may _ _ _ _ _ take 5×4×3×2×1 =120

Answer 2

Hello dear

There are so many numbers that can be formed:

Some of them are:

102478
102487
102748
102784
102874
102847
120847
120487
120478
120748
120784
178420
178240
174820
174802
172840
172480

There are so many numbers

Divisibility

If the unit digit or ones place is 0 or 5 then the number should be divisible by 5.

Thanks