GMAT Exam > GMAT Questions > lies between:a)4 & 5b)5 & 6c)6 & ...
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lies between:- a)4 & 5
- b)5 & 6
- c)6 & 7
- d)7 & 8
- e)8 & 9
Correct answer is option 'D'. Can you explain this answer?
Verified Answer
lies between:a)4 & 5b)5 & 6c)6 & 7d)7 & 8e)8 & 9Co...
In order to rid the expression of square roots, let's first square the entire expression. We are allowed to do this as long as we remember to "unsquare" whatever solution we get at that end.
Notice that the new expression is of the form
where
Recall that
This is one of the GMAT's favorite expressions.
Returning to our expression:
Notice that the new expression is of the form
whereRecall that
This is one of the GMAT's favorite expressions.Returning to our expression:
Notice that x2 + y2 neatly simplifies to 48. This leaves only the 2xy expression left to simplify.
In order to simplify
recall that 
Thus,
Notice that the expression under the square root sign is of the form
And recall that 
This is another one of the GMAT's favorite expressions. Returning to our expression: 
Finally then:
But now we must remember to "unsquare" (or take the square root of) our answer:
Most Upvoted Answer
lies between:a)4 & 5b)5 & 6c)6 & 7d)7 & 8e)8 & 9Co...
In order to rid the expression of square roots, let's first square the entire expression. We are allowed to do this as long as we remember to "unsquare" whatever solution we get at that end.
Notice that the new expression is of the formwhere
Recall that This is one of the GMAT's favorite expressions.
Returning to our expression:
Notice that the new expression is of the form
whereRecall that
This is one of the GMAT's favorite expressions.Returning to our expression:
Notice that x2 + y2 neatly simplifies to 48. This leaves only the 2xy expression left to simplify.
In order to simplify
recall that Thus,
Notice that the expression under the square root sign is of the form
And recall that This is another one of the GMAT's favorite expressions. Returning to our expression: Finally then:
But now we must remember to "unsquare" (or take the square root of) our answer:
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Community Answer
lies between:a)4 & 5b)5 & 6c)6 & 7d)7 & 8e)8 & 9Co...
In order to rid the expression of square roots, let's first square the entire expression. We are allowed to do this as long as we remember to "unsquare" whatever solution we get at that end.
Notice that the new expression is of the formwhere
Recall that This is one of the GMAT's favorite expressions.
Returning to our expression:
Notice that the new expression is of the form
whereRecall that
This is one of the GMAT's favorite expressions.Returning to our expression:
Notice that x2 + y2 neatly simplifies to 48. This leaves only the 2xy expression left to simplify.
In order to simplify
recall that Thus,
Notice that the expression under the square root sign is of the form
And recall that This is another one of the GMAT's favorite expressions. Returning to our expression: Finally then:
But now we must remember to "unsquare" (or take the square root of) our answer:
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Question Description
lies between:a)4 & 5b)5 & 6c)6 & 7d)7 & 8e)8 & 9Correct answer is option 'D'. Can you explain this answer? for GMAT 2025 is part of GMAT preparation. The Question and answers have been prepared according to the GMAT exam syllabus. Information about lies between:a)4 & 5b)5 & 6c)6 & 7d)7 & 8e)8 & 9Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for GMAT 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for lies between:a)4 & 5b)5 & 6c)6 & 7d)7 & 8e)8 & 9Correct answer is option 'D'. Can you explain this answer?.
lies between:a)4 & 5b)5 & 6c)6 & 7d)7 & 8e)8 & 9Correct answer is option 'D'. Can you explain this answer? for GMAT 2025 is part of GMAT preparation. The Question and answers have been prepared according to the GMAT exam syllabus. Information about lies between:a)4 & 5b)5 & 6c)6 & 7d)7 & 8e)8 & 9Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for GMAT 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for lies between:a)4 & 5b)5 & 6c)6 & 7d)7 & 8e)8 & 9Correct answer is option 'D'. Can you explain this answer?.
Solutions for lies between:a)4 & 5b)5 & 6c)6 & 7d)7 & 8e)8 & 9Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for GMAT.
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