Question 1187444
.


When you say  " decreases at a rate of 13% each hour ",  you  (or the problem)  MUST  TELL   " 13%  of  WHAT  ? ".



Otherwise,  it is not a Math problem,  at all.




As I see,  there is a flow of so called  " quasi "- math problems from an illiterate and unqualified  " composer "   at this time . . .