Write the number of chords in each figure as a sequence.

Do they follow arithmetic sequence?

1, 3, 6, 9; Yes

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1, 3, 6, 9; No

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1, 3, 6, 10; Yes

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1, 3, 7, 10; No

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Solution

The correct option is B
1, 3, 6, 9; No

Number of chords in circle 1 = 1

Number of chords in circle 2 = 3

Number of chords in circle 3 = 6

Number of chords in circle 4 = 9

The sequence is 1, 3, 6, 9

3 - 1 = 2

6 - 3 = 3

9 - 6 = 3

Difference is not same. So, it is not an arithmetic sequence.

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Write the number of chords in each figure as a sequence. Do they follow arithmetic sequence?

The correct option is B 1, 3, 6, 9; No Number of chords in circle 1 = 1 Number of chords in circle 2 = 3 Number of chords in circle 3 = 6 Number of chords in circle 4 = 9 The sequence is 1, 3, 6, 9 3 - 1 = 2 6 - 3 = 3 9 - 6 = 3 Difference is not same. So, it is not an arithmetic sequence.

Write the number of chords in each figure as a sequence.

Do they follow arithmetic sequence?

The correct option is B
1, 3, 6, 9; No

Number of chords in circle 1 = 1

Number of chords in circle 2 = 3

Number of chords in circle 3 = 6

Number of chords in circle 4 = 9

The sequence is 1, 3, 6, 9

3 - 1 = 2

6 - 3 = 3

9 - 6 = 3

Difference is not same. So, it is not an arithmetic sequence.