Post your question in the Comment section below, and a GRE expert will answer it as fast as humanly possible.
- Video Course
- Video Course Overview
- General GRE Info and Strategies - 7 videos (free)
- Quantitative Comparison - 7 videos (free)
- Arithmetic - 42 videos
- Powers and Roots - 43 videos
- Algebra and Equation Solving - 78 videos
- Word Problems - 54 videos
- Geometry - 48 videos
- Integer Properties - 34 videos
- Statistics - 28 videos
- Counting - 27 videos
- Probability - 25 videos
- Data Interpretation - 24 videos
- Analytical Writing - 9 videos (free)
- Sentence Equivalence - 39 videos (free)
- Text Completion - 51 videos
- Reading Comprehension - 16 videos
- Study Guide
- Philosophy
- Office Hours
- Extras
- Prices
Comment on Cashews
How can we solve this
How can we solve this question?
Q.N. Each new car produced in a certain factory includes at least one of the following three options: Bluetooth, navigation system, and sunroof. Of the cars that came off the production line yesterday, 25 had Bluetooth, 13 had a navigation system, and 30 had a sunroof. Yesterday, 50 cars were completed. Which of the following could be true about the cars that came off the production line yesterday?
Indicate all possible answers.
-There were 2 cars that had exactly two of the options and there were 8 cars that had all three options.
-There were 3 cars that had exactly two of the options and there were 7 cars that had all three options.
-There were 4 cars that had exactly two of the options and there were 7 cars that had all three options.
-There were 6 cars that had exactly two of the options and there were 6 cars that had all three options.
-There were 7 cars that had exactly two of the options and there were 5 cars that had all three options.
-There were 8 cars that had exactly two of the options and there were 4 cars that had all three options.
This question is very hard to
This question is very hard to provide a solution using text only, since the best explanation involves a 3-circle Venn diagram.
Can you please watch https://www.greenlighttestprep.com/module/gre-word-problems/video/924 (all about 3-circle Venn diagrams) and see if you can apply the strategy in that video.
If that doesn't help, I'll find a way to post some graphics.
Unless I don't quite figure
Great question!
Great question!
We'll have to check each answer choice.
A) There were 2 cars that had exactly two of the options and there were 8 cars that had all three options
We can test this answer choice by drawing the diagram and placing 8 cars in the middle (cars that have all 3 features) and 2 cars in one of the intersections denoting 2 features. Then plug in the remaining values to see whether we can account for all 5 cars.
And so on.
Hi Brent,
Have you got any solutions to this question posted in first comment?
I found this one particularly challenging.
Here's my full solution:
Here's my full solution: https://gre.myprepclub.com/forum/each-new-car-produced-in-a-certain-fact...
Cheers,
Brent
Would this equation work as
0.05(75-x)+0.8x=15
That's a perfectly valid
That's a perfectly valid solution - nice work.
You are letting x = the weight of the Brand X nut mix needed, which means 0.8x = the weight of the CASHEWS in the Brand X nut mix.
Since the total weight of the resulting nut mix is 75 pounds, then (75-x) = the weight of the Brand W nut mix needed, which means 0.05(75-x) = the weight of the CASHEWS in the Brand W nut mix.
So, if we focus SOLELY on the weight of cashews, we get:
0.05(75-x) + 0.8x = 15
Cheers,
Brent