Question

a question paper has 3 sections . there are 2 question in each section. A candidate has to select two sections and answer one question from each of these selected sections. The number of ways the candidte can answer the question paper is

Answer 1

@satellite73 @saifoo.khan

Answer 2

how many ways can the candidate select 2 sections from 3?

Answer 3

the answer should be 12 @satellite73

Answer 4

i know the answer, i was asking if you knew how many ways you can pick two sections out of three? we need that number

Answer 5

i got it as 6

Answer 6

no, there are only 3 ways to pick two sections out of 3

Answer 7

suppose the sections are called A, B C
then you can pick
A B
A C
B C
only three ways

Answer 8

once you have picked your two sections, you have a choice of two problems in each
so total number of ways to do this is \(3\times 2\times 2=12\)

Answer 9

why 3*2*2???

Answer 10

@satellite73

Answer 11

again it is the counting principle
figure out how many ways to do each task, then multiply them together

Answer 12

@satellite73 is it 3*2*1

Answer 13

3 ways to pick the two sections
then in each of the two sections 2 ways to pick the two problems
so multiply the number of ways to do each task

Answer 14

how 2 ways to pick the two problems>>>

Answer 15

pick the two sections: 3 ways
pick a problem from one of the sections chosen: 2 ways
pick a problem from the other section chosen: 2 ways
\[3\times 2\times 2=12\] it all comes from the "counting principle"

Answer 16

two ways to pick a problem in a section because you wrote
"there are 2 question in each section"

Answer 17

ok now i get it r u a maths teacher @satellite73

Answer 18

i am a car

Answer 19

@satellite73 i am unable to send messages to u....................