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Mathematical Reasoning Videos 30 videos

CAHSEE Math 1.1 Mathematical Reasoning
222 Views

CAHSEE Mathematical Reasoning: Drill 1, Problem 1. Based on this information, which of the following can be determined?

CAHSEE Math 1.2 Mathematical Reasoning
185 Views

CAHSEE Math Mathematical Reasoning: Drill Set 1, Problem 2. Which of the following should be the most appropriate first step in solving the equation?

CAHSEE Math 1.3 Mathematical Reasoning
183 Views

CAHSEE Math Mathematical Reasoning: Drill 1 Problem 3. Which of the following is the correct order of steps?

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CAHSEE Math 1.1 Mathematical Reasoning 222 Views


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Description:

CAHSEE Mathematical Reasoning: Drill 1, Problem 1. Based on this information, which of the following can be determined?

Language:
English Language

Transcript

00:03

Here’s your shmoop du jour…

00:05

Mark’s wife is convinced he doesn’t really know her… so she’s insisting he take a test all about her.

00:11

For Mark’s sake, we hope he passes. Assuming he still wants to be married.

00:15

It took two and a half hours to complete.

00:18

Mark spent an average of five minutes on each question. Not a good sign, Mark.

00:22

A few days later, when his wife tallied the results,

00:25

she found that he had missed three of the questions.

00:27

Based on this information, which of the following can be determined?

00:30

And here are the potential answers...

00:36

OK, so this question is mainly just testing whether we can read carefully.

00:39

We have to approach the answers one by one. Take A.

00:42

Can we determine the total number of questions?

00:45

Well… yes – if the test took 2 and a half hours or 150 minutes to complete and he AVERAGED

00:50

5 minutes a question, then we can divide 5 into 150 and glean that the test was 30 questions.

00:57

So A is a true.

00:58

B. They give us that he missed 3… so 30 minus 3 is 27. Checkarooni for B.

01:04

C. Sure. 27 out of 30 is 91ish per cent.

01:09

So the answer is D – we know ALL of these.

01:12

By the way, if there was a choice E… “Mark is in the doghouse”… that one would have been true, too.

01:17

In marriage, an “A minus” doesn’t cut it…

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