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tugstugstugs12
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cansecutive numbers 15 Jul 2010, 02:36
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what is the formula in adding consecutive numbers for example: 5-8? :?: :?: :cry:



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tugstugstugs12
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cansecutive numbers 15 Jul 2010, 02:37
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pls tell me i really need it..
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cansecutive numbers 15 Jul 2010, 03:17
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Please follow following steps.
1. Find the mean of the numbers. i.e. (first number + last number)/2
2. Find out total number of terms in series. i.e. last number - first number + 1
3. Mulitply Mean with total number of terms. i.e. sum = mean * no of terms.

Ex. for series 5-8
Mean will be (5+8)/2 = 6.5
Total number of terms = 8-5+1 = 4
Sum = Mean * Total number of terms = 6.5 * 4 = 26
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ksharma12
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cansecutive numbers 15 Jul 2010, 10:23
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For even numbers:

(a)+ (a+2) + (a+4) + (a+6)..... continuing indefinitely

for example a=2

2+4+6+8.....
consecutive even integers



For odd numbers

(a+1) + (a+3) + (a+5) + (a+7)

for the same example 2

3+5+7+9

consecutive odd integers




Just remember any even number plus or minus 1 will give you an odd. For simple consecutive integers you can use this reasoning to determine the difference between each number.


An=A1+(n-1)d

An= Last Number you are looking for

A1= first number in the series

n= number of terms in the series

d= difference between each number
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tugstugstugs12
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cansecutive numbers 19 Jul 2010, 05:02
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i get it...thank you so much..:)
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ksharma12
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cansecutive numbers 20 Jul 2010, 09:30
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no problem kudos appreciated!
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cansecutive numbers 20 Jul 2010, 09:38
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@ksharma: I think the query raiser is not aware of kudos system. You explained in detail so +1 from my side.

Keep up this healthy spirit to help others.
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cansecutive numbers 20 Jul 2010, 10:34
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Hussain Thank you!
First Kudos!



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