养殖场去年养奶牛40头,今年养奶牛60头.1.今年比去年多养百分之几?

问题描述:

养殖场去年养奶牛40头,今年养奶牛60头.1.今年比去年多养百分之几?

(60-40)÷40=50%
答今年比去年多养50%