suppose considering the most worst case the solution would be 72.

suppose you first take out some gloves and find that all these socks are yellow in color. you take out all the 45 gloves out and it turns to be yellow and you have 1 pair of glove.
simmilarly it also occurs for the red one and you have 25 gloves with 1 pair of it
hence the remaining all gloves are of blue. hence if  you even take 2 gloves from the closet you will have 1 pair of gloves
Totally you have 3 pairs of gloves each of same color.
ie… 45+25+2=72