Permutations and Combinations-Simple Applications (BITSAT Mathematics): Questions 1 - 5 of 5

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Question number: 1

» Permutations and Combinations » Simple Applications

MCQ▾

Question

The number of ways in which mn students can be distributed equally among m sections is –

Choices

Choice (4) Response

a.

(mn)!m!

b.

(mn)!(n!)m

c.

(mn)m

d.

(mn)!n!

Question number: 2

» Permutations and Combinations » Simple Applications

MCQ▾

Question

If n is an even positive integer they nCr , is maximum where r=_ ,

Choices

Choice (4) Response

a.

n

b.

0

c.

n2

d.

Question does not provide sufficient data or is vague

Question number: 3

» Permutations and Combinations » Simple Applications

MCQ▾

Question

A parallelogram is cut by two sets of n parallel lines parallel to the sides of the parallelogram. The number of parallelogram thus formed is –

Choices

Choice (4) Response

a.

nC2×n+1C2

b.

nC2×nC2

c.

n+2C2×n+2C2

d.

Question does not provide sufficient data or is vague

Question number: 4

» Permutations and Combinations » Simple Applications

MCQ▾

Question

r=0mn+rCn

is equal to

Choices

Choice (4) Response

a.

n+m+1Cn+1

b.

n+m+2Cn

c.

n+m+3Cn1

d.

All of the above

Question number: 5

» Permutations and Combinations » Simple Applications

MCQ▾

Question

The value of expression

47C4+i=1552iC3

is equal to –

Choices

Choice (4) Response

a.

52C5

b.

52C3

c.

47C4

d.

52C4

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