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Maths Puzzle
Numerical Ability
How long would it take and SR71 blackbird to travel 5570 miles, if it travels at an average speed of 2228 mph?
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book Other Question
a container contains 8 liters of a mixture of water and salt. the mixture is 70% salt. how much pure salt must be added to make it 80% salt?
Dear Tutor,
How do you write an equation that shows the relationship between two numbers?
Thank you