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divide 24 in three parts such …

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divide 24 in three parts such that they are in AP and their product is 440
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Gaurav Seth 4 years, 8 months ago

The parts are in AP, let the terms be a-d, a and a+d

where the first term =a-d

the common difference =d

Given, sum =24cm

a-d + a+a +d = 24cm

3a = 24cm

a =8cm

Given: Product of the terms = 440

(a-d) (a) (a+d) = 440

(8-d) (8+d) (8) =440

(8-d)(8+d) = 55

82 -d2 = 55

64 - d2 = 55

d2 = 64-55

d2 = 9

d = 3 or -3

AP- a-d , a, a+d

so the AP is 8-3, 8, 8+3 or 8+3,8,8-3

AP = 5, 8, 11 or 11, 8, 5

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