Jam is made from 4 parts fruit to 3 parts sugar. How much sugar is needed to make jam from 1 kg of fruit?
A triangle has side lengths in the ratio 3 : 4 : 5. If the perimeter of the triangle is 84 cm, what is the length of the shortest side
Orange juice concentrate is mixed with water in the ratio 2 : 5. This mixture is then mixed with lemonade in the ratio 3 : 4. What is the ratio of orange-juice concentrate to lemonade in the final mixture?
Re: Jam question
If 4 parts = 1kg then 1 part = 1/4 kg and 3 parts = 3/4 kg. So you would need 3/4kg of sugar.