Question

multiple choice questions with 5 answers each? ereu that contains 6 truè/false questions and 54 mbrs may be formed using the elements from the set (3,4,5,6,7) if no How many 4-digit pdd y 4-digit odd b 8) 8) How man number? ollections of 4 tiles can be formed from the 28 Finite ti elements may be used more than once in a tian eontains exactlv 3 bolts

Answer 1

8)

So,

Set = 3,4,5,6,7

No repetition

So,

we need to select 4 out of 5

For odd number, last digit can be 3 or 5 or 7

If last digit is 3, Ways = 4C3 * 3!

If last digit is 5, Ways = 4C3 * 3!

If last digit is 7, Ways = 4C3 * 3!

Total = 3 * 4C3 * 3!

Total = 72