Number 3 can be expressed by using 1 and 2 in 3 distinct ways I,e, 1+1+1, 1+2, 2+1; number 4 in 5 ways: 1+1+1+1 , 2+1+1, 1+2+1, 1+1+2, and 2+2.
Using the digits 1 and 2 as summands, in how many ways may be 26 expressed?
Bonus: Generalize the process for number N.
The advantages are of course the complete lack of pollution as the rainwater is converted back into regular water after using the
mountain water. Sounds good, doesn't it? But can water be used for human health? Traditionally, the universe has used water as a necessity of time and life for all living things o
n earth.