Vault Times — Maths in the news

Environment & science · BBC — Science & environment

Getting river pollution investigated like 'pulling teeth'

Bristol residents say an oil-like substance has been bubbling up for years and killing wildlife.

Classroom maths questions Tailored prompts

Bristol residents say an oil-like substance has been bubbling up for years. If 'years' means at least 3 years, how many months is that?

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Residents say the pollution has been killing wildlife. If 15 fish and 8 birds were killed, what is the ratio of fish to birds killed? Simplify your answer.

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Getting river pollution investigated is like 'pulling teeth'. If it took 4 years to get an investigation, how many days is that? Use 1 year = 365 days.

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Environment & science · The Guardian — Environment

‘You can taste the land’: the Somerset farmer bringing wildflowers back to cheddar

Tom Calver has sacrificed milk yields to give his cows a more varied diet of plants and believes the result is better cheese and richer farmlandIn the rolling hills of Somerset, hundreds of thousands of cows placidly munch lush green grass to produce milk for cheddar.But six fields stand out. Rather than uniform gra…

Classroom maths questions Tailored prompts

Tom Calver has six fields with wildflowers. If each field is 5 hectares, what is the total area?

Your answer

If he sacrificed 10% of milk yields to give cows a varied diet, and his original yield was 1,000 litres per cow per year, what is the new yield?

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The article says 'you can taste the land'. If a cheese maker uses milk from these cows and sells cheese at £15 per kilogram, how much would 2.5 kg cost?

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Environment & science · BBC — Science & environment

Shipwreck found on Nantucket beach during storm

The so-called nor'easter storm has washed up what may be a shipwreck from the 19th century in Massachusetts, local media says.

Classroom maths questions Tailored prompts

A shipwreck from the 19th century is found on a Nantucket beach. If the 19th century means the 1800s, in which year did that century begin?

Your answer

The nor'easter storm washed up the possible shipwreck. If the storm caused 3.5 inches of rain and then another 1.75 inches, what was the total rainfall?

Your answer

If the shipwreck is estimated to be 150 years old and it is now 2026, in what year was it likely built?

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