GRE Permutation Practice Question. Reordering letters of a word

Описание к видео GRE Permutation Practice Question. Reordering letters of a word

Video explanation to GRE quantitative reasoning problem solving practice question.

Topic: Permutation Combination
Concept: Reordering or rearranging letters of a word.

Question
How many words can be formed by re-arranging the letters of the word PROBLEMS such that P and S occupy the first and last position respectively? (Note: The words thus formed need not be meaningful)

A. 8!/2!
B. (8! - 2!)
C. 6!
D. 8! - (2 * 7!)
E. 6! * 2!

Sign up to try Wizako's Online GRE Prep course @ https://online.wizako.com/gre/

Ace your GRE with Wizako's GRE classes @ Chennai. Visit https://classes.wizako.com/gre/gre-co... for batch details.

Комментарии

Информация по комментариям в разработке