820c+380r=4,360 The above equation models the amount of calories in a snack of c cups of cashews and r cups of raisins. The amount of calories per cup of cashews is 820 and the amount of calories per cup of raisins is 380. According to the equation, how many cups of raisins are used, if 3 cups of cashews are used to make the snack?
Correct answer: C. 5
- A. 3
- B. 4
- C. 5
- D. 6
Explanation
Given the equation 820c+380r=4360, when c=3, substituting into the equation gives: 820(3) + 380r = 4360, 2460 + 380r = 4360, 380r = 1900, r = 5. Therefore, the correct number of cups of raisins used is 5. Options A, B, and D are incorrect because they do not satisfy the equation when substituted.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Quantitative Reasoning
Quantitative reasoning applies arithmetic and basic algebra to numerical relationships, including percentages, ratios, averages, fractions, proportions, profit and loss, rates, time, work and measurement. Questions focus on translating words into equations, choosing an efficient method and checking whether the result is numerically reasonable.
Practise Quantitative Reasoning
625 free Quantitative Reasoning MCQs from Analytical and Logical Reasoning, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Analytical and Logical Reasoning questions like this
Analytical and Logical Reasoning is on 27 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Quantitative Reasoning questions
There are one hundred and forty-two students in a high school band. These students represent two ninth of the total students in the high school. How many students attend the school?
Two and three-fifths of a number equals −26 . What is the number?
What number is halfway between -5/6 and 1/3 on a number line?
A $48 shirts costs $22 more than one half the cost of a pair of pants. How much does the pair of pants cost?
Twice a number n increased by 11 is the same as six times the number decreased by 9. What is the value of n?
One half of a number increased by 3 is five less than two thirds of the number. What is the number?