Find the sum of the even natural numbers lying between 10 and 100
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Answer:
2420
Step-by-step explanation:
Concept= Sequence and Series
Given= Sequence
To find= sum of sequence
Explanation=
Even Natural numbers lying between 10 and 100 are
12,14,16,18,...............,94,96,98.
a= 12(first element), d=2(common difference), l=98(last element)
l= a+(n-1)d (n= total number of elements)
98= 12+(n-1)2
n=44
Sum of all even numbers from 10 and 100 is
S=(a+l)n/2
=> (12+98)44/2
=> 110*22 = 2420
Sum is 2420
#SPJ3
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