Given :
A hostel of 500 boys has provisions for 4 days.
To Find :
If the provisions were continued for 20 days, how many students have gone out of the hostel.
Solution :
Let, number of students left after 20 days are x.
Now, provisions are given by :

Also, provisions remains same.
So, initial provision = final provision

Therefore, 100 students have gone out of the hostel.
Hence, this is the required solution.
The simplest (and most commonly used) area calculations are for squares and rectangles. To find the area of a rectangle, multiply its height by its width. For a square you only need to find the length of one of the sides (as each side is the same length) and then multiply this by itself to find the area.
Answer:
Grows, Factor of 2
Step-by-step explanation:
The relationship between the elapsed time, t, in years, since Takumi started studying his tree, and the total number of its branches, N(t), is modeled by the function:

For illustration, let us take the growth for the first three years after he started studying the number of branches.

We notice that for each subsequent year, the number of branches doubles.
Therefore:
Every year, the number of branches <u>grows</u> by a factor of <u>2.</u>
The GCF of 8x and 40 is 8
40 | 2
20 | 2
10 | 2
5 | 5
1
8 | 2
4 | 2
2 | 2
1
40 = 2³ * 5
8 = 2³
We take only common factors with lowest exponent.
So 2³ = 8
(70*6000 = 420000) (6000*70 = 42000)
Bolded is the answer.