The consumption of each adult garment is X/60, and that of children's garments is X/90.

The fabric consumption on the first day is 30*(X/60+X90)=5X/6.

Then let's assume that the rest of the cloth can be used to make y clothes, Y=(X-5X/6)÷X/60= 10.

So you can also make 10 adult clothes.

Note:/is a semicolon, and X/60 is pronounced as the sixtieth X.