## Bharat Gupta is teaching live on Unacademy Plus

COMBINATION Practical Problem part - 6 Follow Upvote

Problem for this lesson In an election, a voter may vote for any number of candidates not greater than the number to be chosen. There are 7 candidates and 4 members are to be chosen. In how many ways can a person vote? a. 89 b. 98 c. 79 d. 101 A box contains 7 red, 6 blue and 4 black balls. how many selection of three balls can be made so that all three are red balls a. 35 b. 70 . 42 An urn contains 5 different white and 6 different black balls. In how many ways can 6 balls be selected so that there are at least two balls of each colour? a. 425 b. 245 c. 125 d. 625 AB and CD are two parallel lines. On AB there are two point P and Q. On CD there are 8 points. Find number of different triangles which could be formed having 3 of the 10 points as vertices? a. 216 b. 126 c. 64 d. 32

In an election, a voter may vote for any number of candidates not greater than the number to be chosen. There are 7 candidates and 4 members are to be chosen. In how many ways can a person vote? a. 89 b. 98 C. 79 d. 101

In an election, a voter may vote for any number of candidates not greater than the number to be chosen. There are 7 candidates and 4 members are to be chosen. In how many ways can a person vote? a. 89 b. 98 C. 79 d. 101 mt L n L n

In an election, a voter may vote for any number of candidates not greater than the number to be chosen. There are 7 candidates and 4 members are to be chosen. In how many ways can a person vote? a. 89 b. 98 C. 79 d. 101 mauV L n 2

A box contains 7 red, 6 blue and 4 black balls. how many selection of three balls can be made so that all three are red balls a. 35 b. 70 . 42

A box contains 7 red, 6 blue and 4 black balls. how many selection of three balls can be made so that all three are red balls a. 35 b. 70 . 42 34

An urn contains 5 different white and 6 different black balls. In how many ways can 6 balls be selected so that there are at least two balls of each colour? a. 425 b. 245 c. 125 d. 625

An urn contains 5 different white and 6 different black balls. In how many ways can 6 balls be selected so that there are at least two balls of each colour? a. 425 b. 245 c. 125 d. 625 6 b al, with of Lat huo bala. .chulun

An urn contains 5 different white and 6 different black balls. In how many ways can 6 balls be selected so that there are at least two balls of each colour? a. 425 b. 245 c. 125 d. 625 6 b al, with of Lat huo bala. .chulun 2

AB and CD are two parallel lines. On AB there are two point P and Q. On CD there are 8 points. Find number of different triangles which could be formed having 3 of the 10 points as vertices? a. 216 b. 126 c. 64 d. 32

AB and CD are two parallel lines. On AB there are two point P and Q. On CD there are 8 points. Find number of different triangles which could be formed having 3 of the 10 points as vertices? a. 216 b. 126 c. 64 d. 32