Find the whole number n when:
(i) `n+4=9`
(ii)`n+35=101`
(iii) `n-18=39`
(iv) `n-20568=21403`

Find the whole number if n +4 = 9

Find the whole number for which: n times n =n

Find a whole number n such that n divide n =n .

The whole number n satisfying n+35=101 is 65 (b) 67(c)64 (d) 66

Find the value of n if: (i) (n+2)! = 12n! (ii) (n+2)! = 60(n-1)! (iii) (n+3)! = 2550 (n+1)! (iv) (n-2)! = 132. (n-4)! .

Evaluate (n!)/((n-r)!) when : (i) n=10,r=4 (ii) r = 1 (iii) r = 2.

Evaluate (n - r) !, when : (i) n=6, r=2 (ii) n=9, r=5

Give the designation of orbital when ltbr. (i) n=2, l=0 " " (ii) n=3, l=2 (iii) n=5, l=1 " " (iv) n=4, l=3.

How many integers are between? (i) -4\ a n d\ 3 (ii) 5 and 12 (iii) -9\ a n d-2 (iv) 0 and 5