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identify the pattern and find Z:

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identify the pattern and find Z:  [#permalink] New post 08 Jul 2004, 05:27
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identify the pattern and find Z:

10—11—15—24—Z—65

then find Y

Y—10—11—15—24
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 [#permalink] New post 08 Jul 2004, 07:13
10-11-15-24-Z-65
1 4 9
1^2 2^2 3^2 4^2.....
Z=40
Similarly Y=10
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 [#permalink] New post 09 Jul 2004, 05:07
Y = 10; Z = 40
each successive number is added by sq of 1, 2,3 ....
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 [#permalink] New post 11 Jul 2004, 05:24
10—11—15—24—Z—65
the differences are std squares
1 4 9 16 25
hence Z=40
Y—10—11—15—24
to keep the pattern
0 1 4 9 16 25
hence Y=10
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 [#permalink] New post 12 Jul 2004, 06:24
Z= 40 as 4^2=16...add that to 24 and we get...

Y = 10 COS 11-(1^2)= 10

Y = 10-0^2( which is 0 )= 10...

hope that helps!

Have fun :)
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the whole worldmakes way for the man who knows wer he's going... good luck

  [#permalink] 12 Jul 2004, 06:24
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