COMBINATROICS: Combinations GRE QUANTS SRIJITA BANERJEE https://unacademy.com/user/mampi

Let us understand the difference between order matters and combination (order does not matter): 02

Let us understand the difference between order matters and combination (order does not matter): We discussed a problem in one of the earlier video 02

Let us understand the difference between order matters and combination (order does not matter): We discussed a problem in the earlier videos There are about 20 students in a class. The class teacher is going to select 3 candidates, G. Sec, President and Vice-President. In how many ways could they be selected? 02

Let us understand the difference between order matters and combination (order does not matter): We discussed a problem in the earlier videos There are about 20 students in a class. The class teacher is going to select 3 candidates, G. Sec, President and Vice-President. In how many ways could they be selected? Does the order matter here? 02

Let us understand the difference between order matters and combination (order does not matter): We discussed a problem in the earlier videos There are about 20 students in a class. The class teacher is going to select 3 candidates, G. Sec, President and Vice-President. In how many ways could they be selected? Does the order matter here? The basic answer would be "NO". 02

Let us understand the difference between order matters and combination (order does not matter): We discussed a problem in the earlier videos There are about 20 students in a class. The class teacher is going to select 3 candidates; G. Sec, President and Vice-President. In how many ways could they be selected? Does the order matter here? The basic answer would be "NO" Look into it carefully 02

Suppose three candidates are taken out of the 10; (EF R) 02

Suppose three candidates are taken out of the 10; (EF R) E- President; F- Vice-president and R- General Secretary 02

Suppose three candidates are taken out of the 10; (EF R) E- President; F- Vice-president and R- General Secretary This is one team. 02

An inventory of coins contains 100 different coins. Quantity A QuantityB The number of possible collec The number of possible collec- tions of 56 coins that can be ons of 44 coins that can be selected (the order of the coins selected (the order of the coins does not matter) does not matter) Quantity A: 100C56 Quantity B: 100C44 02

6 lessons,

55m 10s

Enroll

30

✕Download

Srijita Banerjee

B.Tech in Biotechnology\singer\loves teaching\public speaker\peer educator\Bengali

U

Unacademy user

DRx Anil Yadav

2 years ago

thanks sir

1

Reply