Quote:
Originally posted by biskoppen
4 12 24 36 __ ?
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This one was pretty interesting, there's a pattern in it even though there may have been a mistake in it. Here's the pattern:
+2x
+1x (half the previous one)
+.5x (half the previous one)
so the last one will be:
+.25x (half the previous one) which comes out to 45.
Here it is with the actual numbers:
4
(4+4*2) 12
(12+12*1) 24
(24+24*.5) 36
(36+36*.25) 45
nico-t, your answer is correct but your pattern is not a pattern... you were on the way to finding it though
Oh, and the other two are 35
and 756030... although I must admit I used a calculator for the last one, simply because I can't be bothered to calculate 870*869 without one
