Answer:
14
Step-by-step explanation:
the four smaller rectangles of each of the corners: 2*1=2. since there are four of them, 2*4=8
the middle, larger rectangle: (6-2-2)*(1+1+1) = 2*3 =6
add small and big rectangles: 8+6 = 14
I have done this question yesterday it is 1 and 3
We know that 15 elves represent the 20% of the total.
Since 20% is one-fifth, the total number of elves is

Alternatively, solve the proportion

which yields

Answer:
3.75 liters a day
Step-by-step explanation: