Science (English Medium) Class 11 - CBSE Question Bank Solutions

How many words can be formed out of the letters of the word 'ARTICLE', so that vowels occupy even places?

In how many ways can a lawn tennis mixed double be made up from seven married couples if no husband and wife play in the same set?

m men and n women are to be seated in a row so that no two women sit together. if m > n then show that the number of ways in which they can be seated as\[\frac{m! (m + 1)!}{(m - n + 1) !}\]

How many words (with or without dictionary meaning) can be made from the letters in the word MONDAY, assuming that no letter is repeated, if 4 letters are used at a time?

How many words (with or without dictionary meaning) can be made from the letters in the word MONDAY, assuming that no letter is repeated, if all letters are used at a time.

How many words (with or without dictionary meaning) can be made from the letters in the word MONDAY, assuming that no letter is repeated, if all letters are used but first is vowel.

Find the number of words formed by permuting all the letters of the following words:
INDEPENDENCE

Find the number of words formed by permuting all the letters of the following words:
INTERMEDIATE

Find the number of words formed by permuting all the letters of the following words:
ARRANGE

Find the number of words formed by permuting all the letters of the following words:

INDIA

Find the number of words formed by permuting all the letters of the following words:

PAKISTAN

Find the number of words formed by permuting all the letters of the following words:

RUSSIA

Find the number of words formed by permuting all the letters of the following words:
SERIES

Find the number of words formed by permuting all the letters of the following words:
EXERCISES

Find the number of words formed by permuting all the letters of the following words:
CONSTANTINOPLE

How many words can be formed with the letters of the word 'UNIVERSITY', the vowels remaining together?

Find the total number of arrangements of the letters in the expression a³ b² c⁴ when written at full length.

How many words can be formed with the letters of the word 'PARALLEL' so that all L's do not come together?