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Question: The length, the breadth and the height of a rectangular solid are in the ratio 1:2:3. If the length, breadth and height are increased by 100%, 200% and 200% respectively , then the increase in the volume of the rectangular solid is
A) 5 times
B) 6 times
C) 12 times
D) 17 times
E) 20 times
Solution and Explanation
Approach Solution 1
This is a question about how to solve a problem on the GMAT. The facts given in the questions must be analyzed in order to come up with an answer. Some parts of the method may come from other areas of mathematics. The way the choices are laid out is pretty close to the right answer, so guessing can often lead to mistakes. Students must fully understand the question and think about how to answer it in the right way.
D is the correct answer.
Approach Solution 2
This is a question about how to solve a problem on the GMAT. The facts given in the questions must be analyzed in order to come up with an answer. Some parts of the method may come from other areas of mathematics. The way the choices are laid out is pretty close to the right answer, so guessing can often lead to mistakes. Students must fully understand the question and think about how to answer it in the right way.
So, the correct answer is D.
Approach Solution 3
This is a question about how to solve a problem on the GMAT. The facts given in the questions must be analyzed in order to come up with an answer. Some parts of the method may come from other areas of mathematics. The way the choices are laid out is pretty close to the right answer, so guessing can often lead to mistakes. Students must fully understand the question and think about how to answer it in the right way.
So, D is the right answer.
“The length, the breadth and the height of a rectangular solid are in the ratio 1:2:3" - is a topic of the GMAT Quantitative reasoning section of GMAT. This question has been borrowed from the book “GMAT Official Guide Quantitative Review”.
To understand GMAT Problem Solving questions, applicants must possess fundamental qualitative skills. Quant tests a candidate's aptitude in reasoning and mathematics. The GMAT Quantitative test's problem-solving phase consists of a question and a list of possible responses. By using mathematics to answer the question, the candidate must select the appropriate response. The problem-solving section of the GMAT Quant topic is made up of very complicated math problems that must be solved by using the right math facts.
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