(10). 423,,,,,,,,,,4.10=40..
Hopefully that's help u
19 people take the elevator. it’s just asking for the total of people who take the elevator.
Double every year
year one
4 times 2
year 2
4 times 2 times 2 aka 4 times 2^2
year 3
4 times 2 times 2 times 2 aka 4 times 2^3
obviously
at year 'n' the number of rabbits will be
4 times 2^n
Answer:
From the most right side it's 2^0 which is 1. The other ones are 2^4 and 2^3, So 16+8+1=25