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: )

how many letters are there ?
how many digits are there ?
the question is ambiguous yeah

http://prntscr.com/7q5o2w there is one

You're right @ganeshie8 =)

10 digits
http://prntscr.com/7q5ox0 there is 2

are you trying to trick us with this question?

you can try the rest on your own, its the same method

No no it is really the question

what is the question

hey is that a new question ?

3 jackets
6 shirts
4 pants
total how many possibilities are there for buying "one" item ?

It seems like the first question is a unintelligible. So i posted the last one.

Yep! one item to choose from 13 items
so one of the items can be chosen in 13C1 = 13 ways

for part b, you need to multiply them :
3C1*6C1*4C1 = 3*6*4 = 72

yezzz how about the 4th question

12c1?

oh its like the fifth question though

12C1 = 12
for parta looks good

16 ppl total
one class representative can be chosen in 16C1 = 16 ways

nope, your answer for b is wrong

is it 14c2?

First of all, whats your interpretation of the problem ?

we need to choose two class representative, one from each gender, yes ?

yes yes

whats your answer for part b ?

its 48 ways

good

for partc, we just need to choose 2 students, gender doesn't matter

Yes, 2 students can be chosen from 14 students in 14C2 ways.

the road

|dw:1436339681059:dw|

Suppose A is your home,
C is your school
and B is an icecream shop on the way

parta is asking you to find out the number of paths between A and C

Okay.. Im following. =)

Make a guess, how many total paths are there ?

Nope. Notice that for every path from A to B,
there are 4 paths from B to C :
|dw:1436340238276:dw|

since there are 6 paths from A to B,
the total number of paths from A to C will be simply 6*4 = 24

read the question again
what do we need to find for parta ?

it is just asking you to find the number of paths from A to C through B

there are 24 paths
so the answer is 24

Easy ok

can you try partb ?

part? you mean..

|dw:1436343105994:dw|

Thank you so much @ganeshie8 =)