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Which of the following are Mechanical waves?
X rays
Radio waves
Microwaves
Sound waves
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Percentages
Simple Interest Compound Interest
Algebra
Geometry
Venn Diagrams
Number Series
Linear Equations
Inequalities
Arithmetic
Averages, Ratio and Proportion
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Time And Work
Quadratic Equations
Remainders
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Logarithms
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Logarithms, Surds and Indices
Progressions and Series
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Number Systems
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Time Speed Distance
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