Question

Number of selections of at least one letter from the letters of MATHEMATICS, is ______.

पर्याय

• 863

• 864

• 865

• 866

Answer 1

Number of selections of at least one letter from the letters of MATHEMATICS, is 863.

Explanation:

MM AA TT H E I C S

Number of selections of at least one letter

= 3 × 3 × 3 × 2⁵ – 1

= 864 – 1

= 863