The number of ways of selecting two numbers from the set `{1,2,……………12}` whose sun is divisible by 3 is (A) 66 (B) 16 (C) 6 (D) 22

Total number of ways of selecting two numbers from the set {1,2,3,...,90} so that their sum is divisible by 3, is

the total number of ways of selecting two number from the set {1,2,3,4,…..3n} so that their sum divisible by 3 is equal to -

If the total number of ways of selecting two numbers from the set {1, 2, 3, ……….., 89, 90} such that their sum is divisible by 3 is k, then (k)/(500) is

The total number of ways of selecting two numbers from the set {1,2,3,4,........3n} so that their sum is divisible by 3 is equal to a.(2n^(2)-n)/(2) b.(3n^(2)-n)/(2) c.2n^(2)-n d.3n^(2)-n

The number of ways of selecting 4 numbers from the set S={1,2,3,4,5,6,7,8,9} such that they are not consecutive,is

The number of four digited numbers formed by {2,4,5,7,8} divisible by 4 is (A) 36 (B) 46 (C) 56 (D) 66

n is selected from the set {1,2,3,............,100} and the number 2^(n)+3^(n)+5^(n) is formed.Total number of ways of selecting n so that the formed number is divisible by 4 is equal to (A)50(B)49(C)48 (D) None of these.

If n is a whole number greater than 1, then n^(2)(n^(2)-1) is always divisible by 8 (b) 10 (c) 12 (d) 16

If a number is divisible both by 2 and 3, then it is divisible by 12.

The number of ways to select 2 numbers from {0, 1, 2, 3, 4} such that the sum of the squares of the selected numbers is divisible by 5 are (repetition of digits is allowed).