Question

Their is a question paper consisting of 15 questions .
Each question has an internal choice of 2 options .
In how many ways can a student attempt one or more
questions of the given fifteen questions in the paper ?

Answer 1

\(\large \color{black}{\begin{align}
& \normalsize \text{Their is a question paper consisting of 15 questions .}\hspace{.33em}\\~\\
& \normalsize \text{Each question has an internal choice of 2 options .}\hspace{.33em}\\~\\
& \normalsize \text{In how many ways can a student attempt one or more}\hspace{.33em}\\~\\
& \normalsize \text{questions of the given fifteen questions in the paper ?}\hspace{.33em}\\~\\
& a.)\ 3^{7} \hspace{.33em}\\~\\
& b.)\ 3^{8} \hspace{.33em}\\~\\
& c.)\ 3^{15} \hspace{.33em}\\~\\
& d.)\ 3^{15}-1 \hspace{.33em}\\~\\
\end{align}}\)

Answer 2

d

Answer 3

yea correct

Answer 4

how did u got that

Answer 5

15+2-1=17 :)

Answer 6

what is that ?

Answer 7

right away looking at the question and the answers I could tell which is which, all i did was add 15 and 2 and I saw that none of them were close to it besides D so i added 3^15-1 and got 17.

Answer 8

ur IQ seems higher than me

Answer 9

Lol, says the mathlete.

Answer 10

+1 for attempt

Answer 11

+2

Answer 12

so there are 15 questions,
how many choices do you have with each question ?

Answer 13

2

Answer 14

think again

Answer 15

"each question has 2 choice"

Answer 16

remember there is also a choice of attempting the question

you may choose not to attempt a question

Answer 17

3

Answer 18

:P

Answer 19

interval

Answer 20

So did u get the answer now?

Answer 21

no

Answer 22

the kid can attempt the a question in 3 ways ok till now :)

Answer 23

Nd then hes has to do 15 questions so number of ways of doing it=3x3x3x....fifteen times

Answer 24

But then there is a case where the kid leaves the paper empty :) so we give him a - 1 cause we will not consider that he attempted the paper. So we get the answer -
3^15-1

Answer 25

ok

Answer 26

What is the full form of O.K?

Answer 27

good question

Answer 28

what is the full form of IMQ

Answer 29

okay

Answer 30

that made sense in your justification of taking one away from the 3^(15)
you know because if he doesn't answer any of them then it is not really consider an attempt
but I have seen people attempt tests and write nothing on it except a drawing :p

Answer 31

I don't know what IMQ stands for

Answer 32

:)

Answer 33

huh I always thought okay was the proper word for slang ok. But ok is actually okay. Like I think they use the word ok more actually. And ok is consider its full form. It just also has different forms that are used such as okay.

Answer 34

IMQ-> imquerty->@imqwerty

Answer 35

:O

Answer 36

ah

Answer 37

lol

Answer 38

I just realize I completely missed something in your question @mathmath333
oh you know what they thingy does say how can the person attempt one or more questions anyways so that part wasn't a guessing thing

if it said how can the person attempt 0 or more questions then it would have been 3^(15)

Answer 39

yes i got that

Answer 40

:) how to get slim in jst a week?
.

The answer is simple :)
Jst turn ur head left nd then right then left nd so whenever u r given food

Answer 41

what is that ^

Answer 42

does doing that much turning cause you to lose that much calories

Answer 43

trolling lol

Answer 44

Nope :)
It is nt like that

Answer 45

Is it trolling or troling :)