Question

The sum of 3consecutive multplies of 9 is 1485 find multplies

Answer 1

Answer:

supposed number is p

p+(p+9)+(p+18)=1485

3p+27=1485

3p=1485-27

3p=1458

p=1458/3

p=486

Step-by-step explanation:

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Answer 2

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486 , 495 , 504

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Three consecutive multiples means one after one....

So , let 1ˢᵗ multiple = x

2ⁿᵈ multiple = x + 9

3ʳᵈ multiple = x + 9

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x + x+ 9 + x + 9 = 1485

3x + 18 = 1486

3x = 1485 - 18

3x = 1467

x = 489

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x = 486 ----(1)

x + 9 = 486 + 9 = 495 ----(2)

x + 18 = 495 + 9 = 504 ----(3)

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Add (1) + (2) + (3)

LHS = RHS

486 + 495 + 504 = 1485

1485 = 1485