A bag contains 3 black, 4 white and 2 red balls, all the balls being d – McqOptions

MCQOPTIONS

1.	A bag contains 3 black, 4 white and 2 red balls, all the balls being different. The number of selections of at most 6 balls containing balls of all the colours is
A.	42 × 4!
B.	26 × 4!
C.	(26 - 1) × 4!
D.	None of these
Answer» B. 26 × 4!

Discussion

No Comment Found

Related MCQs

How many even integers between 4000 and 7000 have four different digits?
If P (n, r) = 2520 and C (n, r) = 21, then what is the value of C (n + 1, r + 1)?
If C(20, n + 2) = C(20, n – 2) then what is n equal to?
How many three-digit even numbers can be formed using the digits 1, 2, 3, 4 and 5 when repetition of digits is not allowed?
If a and b are greatest values of 2nCr and 2n - 1Cr respectively, then
In what number of ways can the letters of the word 'ABLE' be arranged so that the vowels occupy even places?
In how many ways the letter of the word BALLOON be arranged so that two L do not come together?
A group of students comprises of 5 boys and n girls. If the number of ways, in which a team of 3 students can randomly be selected from this group such that there is at least one boy and at least one girl in each team, is 1750, then n is equal to:
Let (x + 10)50 + (x - 10)50 = a0 + a1 x + a2 x2 +…+ a50 x50, for all x ∈ R; then \(\frac{{{a_2}}}{{{a_0}}}\) is equal to:
Out of 15 points in plane, n points are in the same straight line, 445 triangles can be formed by joining these points. What is the value of n?