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April 24th, 2017, 02:17 AM  #1 
Newbie Joined: Apr 2017 From: Malta Posts: 1 Thanks: 0  Percentages
Fresh mushrooms are grown in a farm. Some of these are dried in an oven. A batch of fresh mushrooms weighs 5kg. The amount of water in these mushrooms is 92% of their weight. (a) What is the weight of the dried mushrooms if all the water were to be removed? (b) What is the weight of the mushrooms at a stage when they are partially dried and the amount of water is 60% of the total weight? 
April 24th, 2017, 02:37 AM  #2 
Senior Member Joined: Feb 2016 From: Australia Posts: 1,511 Thanks: 505 Math Focus: Yet to find out. 
What are you struggling with? Do you know what a percentage is? And what it represents?

April 24th, 2017, 03:57 PM  #3 
Banned Camp Joined: Apr 2017 From: durban Posts: 22 Thanks: 0 Math Focus: Algebra 
Percentage of water in dried mushroom +percent of water in fresh mushroom = 100% X + 92% = 100% X =8% Weigth of dried = 8/100 x 5kg Weight = 0.4kg B) weight of dried + weight of 60% of water 0.4kg + 60/100 x 5kg Ans =3.4kg 

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