Question

Find the number of 6-digit numbers using the digits 3,4,5,6,7,8 without repetition.How many of these numbers are(a) divisible by 5, (b) not divisible by 5.​

Answer 1

Answer:

5 numbers are divisible by 5 and 25 numbers are not divisible by 5

Answer 2

Answer:

(a) 240;

(b) 480.

Step-by-step explanation:

The explaination is given in figure.

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