## Tuesday, March 24, 2009

### Find the Pattern in the Numbers

What number should logically replace the question mark?

7
17
8 1/2
14 1/4
10
11 1/2
?

Sorry about the formatting.  I don't know how to get 1/2 to look right.  To be clear, if I was using decimals, the third number is 8.5, then the next number is 14.25.

1. ans is 11 1/2

7 + 1.5 = 8 1/2 ; 17 - 2.75 = 14.25
8.5 + 1.5 = 10 ; 14.25 - 2.75 = 11.5
10 + 1.5 = 11.5 ;

2. To make ¼, ½, and ¾ press and hold the ALT key and press 0188, 0189, or 0190 respectively on the NUMBER pad of the keyboard.

3. Very cool, thanks Howie!

The answer is 11½. The pattern is skipping every other number, so that it goes 7, 8½, 10, 11½; and the other pattern is heading down, 17, 14¼, 11½, ...

4. Find a pattern
1
11
21
1211
111221
312211
13112221
……………

5. Hi Anonymous,
I love that one (http://www.questionotd.com/2005/10/what-should-next-row-be.html).

Have any others?

6. Anyone able to solve this pattern?
3
11
20
27
29
23
?

7. what is the rule of this pattern?:

1
1 1/4
1 3/4
2 1/2

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