Explore Westonci.ca, the premier Q&A site that helps you find precise answers to your questions, no matter the topic. Our platform offers a seamless experience for finding reliable answers from a network of knowledgeable professionals. Get detailed and accurate answers to your questions from a dedicated community of experts on our Q&A platform.
Sagot :
Answer: A) 3
=========================================================
Explanation:
Let's say there are 216 machine parts that need to be made. I'm using this number since 12*18 = 216. Refer to the note at the bottom.
If person A works alone, then they can make those 216 parts in 12 days. Person A's unit rate is 216/12 = 18 parts per day.
Person B, working alone, has a rate of 216/18 = 12 parts per day.
If they work together without hindering one another, then their combined unit rate is 18+12 = 30 parts per day.
Working together for 6 days leads to 6*30 = 180 parts made so far. That leaves 216 - 180 = 36 parts left over for person B to finish up.
Since person B does so at a unit rate of 12 parts per day, this means person B needs 36/12 = 3 extra days.
--------------
Side note: There's nothing special about the value 216 I picked. I only selected that value so that dividing over 12 and 18 led to whole number results. You could pick the LCM of 12 and 18 to get the same idea.
Visit us again for up-to-date and reliable answers. We're always ready to assist you with your informational needs. Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. Thank you for using Westonci.ca. Come back for more in-depth answers to all your queries.
