Find the common difference (d) in the following APs respectively.

(i) 20, 40, 60, 80, 100,..

(ii) 5, 0, -5, -10, -15, ...

(iii) 2, 2, 2, 2, 2..

-20,5, 0

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-20, -5, 0

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20, 5, 0

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20, -5, 0

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Solution

The correct option is D
20, -5, 0

Common difference is

(i) 20, 40, 60, 80, 100,

d= 40-20 =20

(ii) 5, 0, -5, -10, -15, ...

d= 0-5 = -5

(iii) 2, 2, 2, 2, 2....

d= 2-2 =0

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Find the common difference (d) in the following APs respectively. (i) 20, 40, 60, 80, 100,.. (ii) 5, 0, -5, -10, -15, ... (iii) 2, 2, 2, 2, 2..

The correct option is D 20, -5, 0 Common difference is (i) 20, 40, 60, 80, 100, d= 40-20 =20 (ii) 5, 0, -5, -10, -15, ... d= 0-5 = -5 (iii) 2, 2, 2, 2, 2.... d= 2-2 =0

Find the common difference (d) in the following APs respectively.

(i) 20, 40, 60, 80, 100,..

(ii) 5, 0, -5, -10, -15, ...

(iii) 2, 2, 2, 2, 2..

The correct option is D
20, -5, 0

Common difference is

(i) 20, 40, 60, 80, 100,

d= 40-20 =20

(ii) 5, 0, -5, -10, -15, ...

d= 0-5 = -5

(iii) 2, 2, 2, 2, 2....

d= 2-2 =0