Q2 of 118 Page 17

Mark the correct alternative in the following:

If , then is equal to


r + r + 4 = 20 ( nCx = nCy ⇒ n = x + y or x = y )


2r + 4 = 20


2r = 16


r = 8


Now,


rC3 = 8C3


8C3

More from this chapter

All 118 →
11

Write the total number of words formed by 2 vowels and 3 consonants taken from 4 vowels and 5 consonants.

 1

Mark the correct alternative in the following:

If , then is equal to


 3

Mark the correct alternative in the following:

If , then r is equal to


 4

Mark the correct alternative in the following:

If , then r is equal to