(手)35÷ 手 r0 =p00(克)答:35克糖需加水p00克.(r)300÷r0=手5(克)答:300克水需加糖手5克.
(1)35÷120=700(克)答:35克糖需加水700克.(2)300÷20=15(克)答:300克水需加糖15克.