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Find the Numbers missing (Posted on 2005-04-28) Difficulty: 3 of 5
__,__,__,48,100,180, 294,448,648,__,__,__,.......Find the three numbers before and after given numbers in the series.

See The Solution Submitted by Pemmadu Raghu Ramaiah    
Rating: 2.0000 (4 votes)

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Solution No Subject | Comment 14 of 18 |

Basically if you look at the difference between each number and then the difference between the differences and keep going the third set of difference are all 6 so you can work out what the missing numbers are from that.

first three: 0, 4, 18
last three: 900, 1210, 1584


  Posted by Lisa on 2005-05-09 13:31:35
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