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If a = 105 and a^3 = 21 x 25 x 45 x b, what is the value of

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If a = 105 and a^3 = 21 x 25 x 45 x b, what is the value of [#permalink] New post 19 Dec 2004, 17:44
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12. If a = 105 and a^3 = 21 x 25 x 45 x b, what is the value of b?
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Joined: 19 Nov 2004
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 [#permalink] New post 21 Dec 2004, 13:06
b=49

a=3x5x7
a^3=3^3x5^3x7^3=(3x7)x(5x5)x(3x3x5)x7x7
Manager
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Joined: 19 Nov 2004
Posts: 59
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Kudos [?]: 3 [0], given: 0

 [#permalink] New post 21 Dec 2004, 13:18
b=49

a=3x5x7
a^3=3^3x5^3x7^3=(3x7)x(5x5)x(3x3x5)x7x7
  [#permalink] 21 Dec 2004, 13:18
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If a = 105 and a^3 = 21 x 25 x 45 x b, what is the value of

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