GMAT Math : Algebra

Study concepts, example questions & explanations for GMAT Math

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Example Questions

Example Question #16 : Understanding Exponents

Express the quotient in scientific notation:

Possible Answers:

Correct answer:

Explanation:

 

Since 0.375 is not in the range , we adjust the answer as follows:

Example Question #17 : Understanding Exponents

Give the result in scientific notation:

Possible Answers:

Correct answer:

Explanation:

Since 64 does not fall in the range , we adjust as follows:

Example Question #41 : Algebra

Give the sum in scientific notation:

Possible Answers:

Correct answer:

Explanation:

Rewrite the second addend as follows:

Example Question #1121 : Problem Solving Questions

Give the sum in scientific notation:

Possible Answers:

Correct answer:

Explanation:

Rewrite the second addend as follows:

This is not in scientific notation; we adjust as follows:

Example Question #1122 : Problem Solving Questions

Give the quotient in scientific notation:

Possible Answers:

Correct answer:

Explanation:

Since 0.9375 does not fall in the range  , we adjust the answer as follows:

Example Question #1123 : Problem Solving Questions

Give the difference in scientific notation:

Possible Answers:

Correct answer:

Explanation:

Rewrite the second addend as follows:

Example Question #1124 : Problem Solving Questions

Express the product in scientific notation:

Possible Answers:

Correct answer:

Explanation:

Since 40 does not fall inside the rangle , we adjust the answer as follows:

Example Question #1131 : Problem Solving Questions

If , what does  equal?

Possible Answers:

Correct answer:

Explanation:

We can use the fact that  to see that  

Since , we have

 .

Example Question #1132 : Problem Solving Questions

Simplify:

Possible Answers:

Correct answer:

Explanation:

Use the properties of exponents as follows:

Example Question #1133 : Problem Solving Questions

Solve for 

Possible Answers:

The equation has no solution.

Correct answer:

Explanation:

The left and right sides of the equation have the same base, so we can equate the exponents and solve:

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