It-is-known-that-the-set-A-1-2-3-100-The-numbers-of-subsets-of-A-which-when-added-together-are-divisible-by-4-

Question Number 190818 by cortano12 last updated on 12/Apr/23

It is known that the set A = {1, 2, 3, \dots, 100}

The numbers of subsets of A which when

added together are divisible by 4

Commented by safojontoshtemirov last updated on 12/Apr/23

[\frac{100}{4}] = 25

Commented by cortano12 last updated on 12/Apr/23

no

Commented by mehdee42 last updated on 12/Apr/23

2^{25} - 1

Commented by cortano12 last updated on 13/Apr/23

how

Commented by safojontoshtemirov last updated on 13/Apr/23

f o r m u l a s : 2^{[\frac{n}{k}]} - 1 i n t [\frac{n}{k}]