Directions How to Answer

Aptitude Test Topic: Arithmetic

The section based on simple arithmetic calculations.

Directions

Solve each problem and indicate the best of the answer choices given.

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Arithmetic: Simple Arithmetic Practice MCQ

Question Statement:

If m and n are both rational numbers and $4^{m} = 8^{n}$ , what is $\frac{m}{n}$ ?

\frac{5}{3}

\frac{3}{2}

\frac{4}{1}

\frac{2}{1}

Explanation:

Correct Answer: B

This question is asking you for the ratio of m to n. To figure it out, the easiest way is to figure out when 4 to an exponent equals 8 to an exponent. The easiest way to do that is to list the first few results of 4 to an exponent and 8 to an exponent and check to see if any match up, before resorting to more drastic means of finding a formula.

$4^{1} = 4, 4^{2} = 16, 4^{3} = 64, 4^{4} = 256, 4^{5} = 1024$

$8^{1} = 8, 8^{2} = 64, 8^{3} = 512, 8^{4} = 4096, 8^{5} = 32768$

And, would you look at that $4^{3} = 8^{2}$ . Therefore, $\frac{m}{n} = \frac{3}{2}$

Question: 6 Test: 1 of 6 Next Test

Tests

You are taking Aptitude Test No. 1

Each aptitude test is comprised of 10 except the last test which might have fewer than 10 in some topics.

You are at question (MCQ) number 6 and Test Number 1 of Arithmetic: Simple Arithmetic. To deal with Arithmetic questions, you must take lesson on the subject. In case of science and Art subjects revise your text books and in case of general aptitude topics take lessons from the topic page.

The question: If m and n are both rational numbers and $\frac{5}{3}$ , $\frac{3}{2}$ , $\frac{4}{1}$ , $\frac{2}{1}$ can be solved with the concepts and understanding of Arithmetic.