The answer of the equation is 0
We know that
The formula for combinations is
C=n!/[(n-r)!*r!]
where
n is the total number of objects you choose from
r is the number that you choose to arrange
in this problem
n=15 students
r=4 students
C=15!/[(15-4)!*4!]-----> C=15!/[11!*4!]---> (15*14*13*12*11!)/(11!*4*3*2*1)
C=(15*14*13*12)/(24)----->C=1365
the answer is
1365
Answer:
first setup your problem. it should look like this :
Answer:
The correct option is A.
Step-by-step explanation:
The given number is

Where 5 is dividend and 11 is divisor.
Since dividend is less than divisor we add a decimal place and the first zero. Notice the decimal point which has appeared on the answer line and by the dividend. It does not appear anywhere else.
Now the dividend is 50. Divide the number by divisor.

Subtract 44 from 50.

Therefore remainder is 6. Place a zero after 6.
Now the new dividend is 60. Divide the number by divisor.

Subtract 55 from 60.

Therefore remainder is 5.


Therefore option A is correct.