王老师看一本书,如果每天看32页,15天看完。现在每天看40页,可以提前几天看完?+p0b0H4Y'V1D-J1q
算式:提示8z:B)u8@8o5?'n7W,|)X*b(e'k+p0b0H4Y'V1D-J1q
答:可以提前*c4[+I/L0?8}8\4z7]0c7e-J天看完。+p0b0H4Y'V1D-J1q