



 
Hi Varsha, Suppose the percentage salt by weight was 16% then the water by weight would be 100%  16% = 84%. In this situation the ratio of salt to water would be 16:84. This ratio can be simplified as you would simplify a fraction. Here 4 divides both 16 and 84 so the ratio can be rewritten 4:21. This ratio can't be simplified any further. Now try 12.5%,  


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