Question

Write the equation of variation for the following:
Number of bottles of the 1 litre (B) filled by
and time required to fill all the bothes.
a tap​

Answer 1

Answer:

Input: N = 9, E = 3

Output: 13

Explanation:

Initially, there are 9 fully filled water bottles.  

All of them are emptied to obtain 9 empty bottles. Therefore, count = 9

Then exchange 3 bottles at a time for 1 fully filled bottle.  

Therefore, 3 fully filled bottles are obtained.  

Then those 3 bottles are emptied to get 3 empty bottles. Therefore, count = 9 + 3 = 12

Then those 3 bottles are exchanged for 1 full bottle which is emptied.  

Therefore, count = 9 + 3 + 1 = 13.

Input: N = 7, E = 5

Output: 8

Explanation:

Empty the 7 fully filled water bottles. Therefore, count = 7

Then exchange 5 bottles to obtain 1 fully filled bottle. Then empty that bottle.  

Therefore, count = 7 + 1 = 8.