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Given, a8 + a4 = 24 and a10 + a6 = 44

a8 = a + 7d

a4 = a + 3d

As per question;

a + 7d + a + 3d = 24

Or, 2a + 10d = 24

Or, a + 5d = 12 …………(1)

a10 = a + 9d

a + 9d + a + 5d = 44

2a + 14d = 44

a + 7d = 22 (2)

Subtracting equation (1) from equation (2);

a + 7d – a – 5d = 22 – 12

2d = 10

d = 5

 

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wordpress 4 mins ago 5 Answer 70 views +22

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