Question

let A be the set of five digits abcde,where a>b>>c>d>e .if no. of elements isn A is K ,then find the value of K/4?

Answer 1

Answer:

7

Step-by-step explanation:

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Answer 2

Answer:

63

Step-by-step explanation:

there are 10 digits from 0 to 9

we can select 5 out of these 10 digits in 10C5 ways

= 10!/5!5!

= (6*7*8*9*10)/(1*2*3"4"5)

= 252

further we can arrange each selection in ascending order in only 1 way

so total no. of ways is 252*1 = 252 = k (given)

hence, k/4 = 252/4

= 63