Twelve questions where the arithmetic is easy and the units are the work: conversions inside a rate, a proportion that runs backwards, shares of a total…
12 questions • Zestly
• A factory machine produces $120$ widgets every $15$ minutes. How many widgets does the machine produce in $3$ hours?
• A hiker walks at a steady pace of $4$ miles per hour. If the hiker walks for $90$ minutes, how many miles will the hiker cover?
• A printing press uses $500$ centimeters of paper roll to print $20$ posters. How many meters of paper are required to print $100$ posters?
• A recipe for a fruit punch requires a ratio of $3$ cups of orange juice to $5$ cups of pineapple juice. If a chef uses $12$ cups of orange…
• A gear system is designed such that a large gear with $40$ teeth drives a smaller gear with $10$ teeth. If the large gear rotates $5$…
• A gardener uses $2$ bags of fertilizer for every $15$ square feet of lawn. How many bags are needed for $60$ square feet of lawn?
• A local library has a collection of $800$ books divided into fiction and non-fiction in a ratio of $3$ to $5$. How many non-fiction books…
• A crew mixes concrete in a ratio of $2$ parts cement to $7$ parts sand, and uses $45$ units of material in all. What is the difference…
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