In the clothing factory there are two t-shirt machines
Machine A produces 30 t-shirts in 3 minutes,
Machine B produces 16 t-shirts in 2 minutes.
Which machine will produce more t-shirts in 10 minutes?
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In the clothing factory there are two t-shirt machines
Machine A produces 30 t-shirts in 3 minutes,
Machine B produces 16 t-shirts in 2 minutes.
Which machine will produce more t-shirts in 10 minutes?
To solve this problem, we'll follow these steps:
Now, let's work through each step:
Step 1: For Machine A, the production rate is calculated as follows:
Production Rate of Machine A =
For Machine B, the production rate is:
Production Rate of Machine B =
Step 2: Calculate the total production over 10 minutes for both machines:
Machine A over 10 minutes:
Machine B over 10 minutes:
Step 3: Compare the production totals:
Machine A produces 100 t-shirts, while Machine B produces 80 t-shirts in the same time period.
Therefore, Machine A will produce more t-shirts in 10 minutes.
Machine B
What is the ratio between the orange and gray parts in the drawing?
Because they're produced in different time periods! Machine A takes 3 minutes while Machine B takes only 2 minutes. You need to find how many each makes per minute to compare fairly.
Think of it like speed: Rate = Distance ÷ Time. Here it's Rate = Output ÷ Time. Just divide what's produced by how long it takes!
That's exactly why we calculate rates! Once you know each machine's rate per minute, you can find output for any time period by multiplying: Rate × Time = Total Output.
Not always! You can use rate per hour, per second, etc. Just make sure both machines use the same time unit when comparing, and match it to your target time period.
Multiply your rate by the original time period. For Machine A: ✓. If you get back the original output, your rate is right!
That's perfectly normal! For example, if a machine makes 7 items in 3 minutes, the rate is items per minute. Just be careful with rounding in your final answer.
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