Question

at what temperature does solid , ice and liquid co-exist togeather

Answer 1

It is also known as triple point of water where ice,water and vapour coexist .The temperature is 0.01°C or 273.16°K at 611.2 Pa.

Answer 2

Solid, ice and liquid co-exist together  at 32.02 degree F or 0.01 degree C.