Complete Question
The complete question is shown on the first uploaded image
Answer:
The correct option is B
Explanation:
The number of alphabet is n= 4 (a , b , c , d )
Generally the total number of string of length 10 over the 4 alphabets is

Gnerally the number of string of length 10 that does not include b is
Generally the number of strings of length 10 over the 4 alphabets that have at least one alphabet b somewhere in the string is

=> 
U didn’t ask a question so I’ll just say that’s cool that it moves like that
<u>This is what I think is harmful!
</u>
<u></u>1.) <u>Deadly gases</u> (Example: C<span>arbon Monoxide</span>)
2.) <u>Poison
</u>
3.) <u>Snake bites</u>
(There is to many to list :D)
Have a good Day/Night :D
Answer:
Explanation:
Given
winning car accelerates with a and its final velocity is v
considering they both start from rest
time taken by winning car is
v=u+at
where u=initial velocity
a=acceleration
t=time


Now loosing car is accelerating with 
Distance traveled by loosing car in time t



Thus distance d traveled by loosing car is given by 
Answer: Hii
Explanation: I had a picture.. so i think this might help you.. I answered this question using this picture, so i thought same might go to u too.. Hv a look.. Good Luck..!!