Lesson Example Discussion Quiz: Class Homework |
Step-3 |
Title: Geometric progression |
Grade: 9-a Lesson: S4-L6 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
Write the next two terms of the given geometric progression : 5,10,20,40,… |
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2 |
Step |
The given geometric series is 5,10,20,40,… |
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3 |
Step |
We know that geometric progression is a series of numbers in which each term is obtained by multiplying the previous term by a fixed number, known as the common ratio. |
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4 |
Formula: |
common ratio of the given geometric series is given by |
\$ r = (r_2)/(r_1) = 10/5 = 2\$ |
5 |
Step |
The next number after 40 is obtained by multiplying 40 with the common ratio (r=2) |
\$ 40 \times 2 = 80 \$ |
6 |
Step |
The next number after 80 is obtained by multiplying 80 with the common ratio (r=2) |
\$ 80 \times 2 = 160 \$ |
7 |
Step |
The next two terms of the given geometric series are 80,160 |
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8 |
Answer |
B |
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Tutor: Questions
| Seq | Type | Question | Audio |
|---|---|---|---|
1 |
Problem |
What did you learn from this problem? |
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2 |
Clue |
What did you learn from the clues? |
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3 |
Hint |
What did you learn from the Hints? |
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4 |
Step |
What did you learn from the Steps? |
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5 |
Step |
How can we improve the Steps? |
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