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1 mark, −0.25MathematicsQuantitative aptitude and data reasoningExponents and logarithmsEasyabout 1 min
JNU SSS 2011 Question 67: Quantitative aptitude and data reasoning
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If log₁₀(x - y) = 3 and log₁₀(x + y) = 4, then x = (A) 3·5 (B) 11000 (C) 5500 (D) 103·5
Also written as: If log_(10)(x - y) = 3 and log_(10)(x + y) = 4, then x =
Quantitative aptitude and data reasoning has come up 92 times in 6 exams since 2008.
What this question tests
This question is on Exponents and logarithms, part of Quantitative aptitude and data reasoning in Mathematics.
Laws of exponents and logarithms and equations that use them.
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Question from the JNU SSS 2011 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.