Errata – All the Quant, 7th Edition
Cover for 7th Edition
Release Date:
September 3, 2019
7.0
| Page | Location | Description | Erroneous Text | Correction |
|---|---|---|---|---|
| 5 |
Chapter 1 Intro |
In the opening sentence of the fifth paragraph, it should say decimals and percentages are easier to add, not fractions. | Decimals and fractions are much easier to add. | Decimals and percentages are much easier to add. |
| 10 |
Chapter 1 Problem Set Solutions |
In the work for question 2, the reduction of 420⁄100 is incorrect. The remaining work and answer are correct and unaffected by the reduction. | 420⁄100 = 21⁄1 | 420⁄100 = 21⁄5 |
| 30 |
Chapter 2 Testing Cases |
The explanation for “Solve. Case 1:” incorrectly states x and y together are 16. The value of y is 4, not 6. The rest of the explanation is unaffected. | 10 + 6 = 16 | 10 + 4 = 14 |
| 66 |
Chapter 4 Work Backwards |
In this section, the third handwritten example for testing answer (B) contains an error. The value for H should be 15, not 14. The text explanation immediately before the handwritten explanation is correct. | H × 2 = 28 –> 3y less | H × 2 = 30 –> 2y less |
| 66 |
Chapter 4 Work Backwards |
In the comparison between answer choices (B) and (D), there’s a mistake in the explanation for (B). Ears should, obviously, be years. | This is too big and off by 2 ears. | This is too big and off by 2 years. |
| 97 |
Chapter 6 Decimal Operations |
In the division section’s first paragraph, “decimals” is spelled incorrectly. | division problems that involve decials | division problems that involve decimals |
| 120 |
Chapter 8 Problem Set Solutions |
Due to an error in the third line of the work for question 3, the answer is incorrect. The sum of 32 and 4 is 36, not 40. | −9 | −9.5 |
| 137 |
Chapter 9 Problem Set Solutions |
The first line of the solution for question 10 refers to c as lattes when it should be cappuccinos. The rest of the explanation is correct. | the number of lattes c | the number of cappuccinos c |
| 163 |
Chapter 11 Fractions and Exponents |
In the “Odd Exponents” subsection, the first example should say –27⁄8, not 27⁄8. Everything else is correct. | –3⁄2 > 27⁄8 | –3⁄2 > –27⁄8 |
| 165 |
Chapter 11 Fractions and Exponents |
In the “Factoring Out a Common Term” subsection, the paragraph summarizing the shortcut mistakenly gives a different answer. It should be the same as the answer derived from the “official math” preceding it. | The answer is 113(3). | The answer is 114(3). |
| 195 |
Chapter 13 Problem Solving Pop Quiz |
Question 1 is rewritten incorrectly in the solution section. The new price increase should match the original and be listed as 5%, not 1%. | an additional 1%. | an additional 5%. |
| 272 |
Chapter 18 Problem Set Solutions |
Towards the end of the explanation for question 1, the simplified second equation has a minus sign before 18 when it should have a plus sign. The solution and the rest of the explanation are correct. | P = 4H + (18)(4) – 18 | P = 4H + (18)(4) + 18 |
| 282 |
Chapter 19 Multiple Rates |
In the diagram visualizing the example question, “A” should be 6 mph, not 4. | A: 4 mph | A: 6 mph |
| 288 |
Chapter 19 Problem Set |
In question 3, the second statement in this Data Sufficiency problem should be listed as (2), not (B). | (B) The ship’s average speed… | (2) The ship’s average speed… |
| 292 |
Chapter 19 Problem Set Solutions |
In the question 5 solution, the second to last sentence uses “Bob” when “Al” should be used. Everything else is correct. | Bob drove 0.6 miles… | Al drove 0.6 miles… |
| 332 |
Chapter 22 Problem Set Solutions |
In the question 6 solution, the algebraic set up incorrectly lists 1L when it should be 0.1L. The explanation that follows is correct. | 1L + 0.03S = 0.08(L + S) | 0.1L + 0.03S = 0.08(L + S) |
| 349 |
Chapter 23 Problem Set Solutions |
In the question 8 solution, the number given as the correct answer at the start of the explanation is incorrect. The explanation that follows is correct. | (B)17⁄24 | (B)7⁄24 |
| 374 |
Chapter 25 Problem Set Solutions |
In the solution for question 4, the first line mistakenly lists 4 as a number in the prime box for 12. It should be 3. The prime boxes themselves and the remainder of the explanation are correct. | The number 12 contains 2, 2, and 4. | The number 12 contains 2, 2, and 3. |
| 384 |
Chapter 26 Problem Set Questions |
In question 10, the expression in statement (2) should be c−2d, not −2d. The explanation found in the solutions section is correct. | −2d is odd. | c−2d is odd. |
| 456 |
Chapter 32 Polygons and Area |
The formula listed for the area of a trapezoid is incorrect. | (Base1 × Base2)(Height)/2 | (Base1 + Base2)(Height)/2 |