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Quantitative Aptitude

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Number Systems and Ratio & Proportion

Question
3 out of 30
 

The sum of the squares of three numbers is 138, while the sum of their products taken two at a time is 131. Their sum is:

A 20
B 30
C 40
D 45
E None of these
Ans. A

Number Systems and Ratio & Proportion Flashcard List

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