Question

. Which of the following is/are true?
() 43' - 1 is divisible by 11
(11) 562 + 1 is divisible by 19
(u) 502 - 1 is divisible by 17
(iv) (729) - 729 is divisible by 5
(a) (i) and (ii)
(b) (i) and (iv)
(c) (i). (iii) and (iv) (d) (i) and (m)​

Answer 1

Answer:

Its right answer will be b