If you are going to sit an
aptitude test as part of the job
selection process then it will almost certainly include some
numerical aptitude questions. Both the proportion of numerical
questions and the type of questions will depend on the job you are
applying for. Obviously, if the job involves dealing with figures
on a day-to-day basis then you can expect the proportion of these
questions to be quite high.
This will include includes a wide range of jobs such as those
dealing with money, buying, selling, processing invoices,
processing orders, administration, engineering, science,
statistics and numerical analysis of any sort. However, even if
figure work does not form a substantial part of the job, you will
probably still have to answer questions of this type as most
employers want some indication of your level of numeracy.
Numerical ability questions are invariably multiple-choice and
strictly timed. You will not usually be allowed to use a
calculator unless this is expressly stated in the question. These
questions can be classified into four types:
Numerical Computation
These questions test your ability to use the basic principles of
arithmetic like addition, subtraction, multiplication and
division. They may also use mathematical terms and methods such as
decimals, percentages, ratios, roots, fractions, powers and
exponents. These questions make no attempt to test your reasoning
abilities. The method you need to get the correct answer will be
obvious and to score well on these questions you will simply need
to make quick and accurate calculations.
Numerical Estimation
These questions test your ability to make quick estimates of the
answers to fairly straightforward numerical questions. To score
well on these questions you will need to make quick approximations
of the answer. You must avoid the trap of working out the answer
exactly, which will take up too much time and prevent you from
answering enough questions to get a good score.
Numerical estimation is key in many craft and technical jobs where
the ability to quickly and accurately estimate material quantities
is essential.
Numerical Reasoning
Information is provided that requires you to interpret it and then
apply the appropriate logic to answer the questions. In other
words, you need to work out how to get the answer rather than what
calculations to apply. Sometimes the questions are designed to
approximate the type of reasoning required in the workplace. The
questions will often use very specific illustrations, for example
the question may present financial data or use information
technology jargon. However, an understanding of these areas is not
required to answer the question. Number series questions can also
be classified as numerical reasoning questions. These types of
question are very commonly used in graduate and managerial
selection.
Data Interpretation
The ability to interpret data presented in tables, graphs and
charts is a common requirement in many management and professional
jobs. If you are applying for a job which involves analysis of or
decision-making based on numerical data then you can expect to
answer this type of question.
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