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Primary 5 Problem Sums/Word Problems - Try FREE

- Ratio: Clue - Think in units! > Ratio Exercise 17 > 2
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Question

Julie wanted to bake a cake with 2 ingredients, flour and sugar.
She used them in the ratio of 3 : 1.
The cost of each kilogram of flour is $1.70 and each kilogram of sugar costs $2.10.
How much would Julie have to spend to make a cake of mass 6 kg?
Notes to students:
- Round your answer off to 2 decimal places
The correct answer is : 10.80