Find the sum of all even numbers between 1 to 150
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Series = 2,4,6,.........150
According to A.P.
a = 2
d = 2
a n = 150
a n = a + ( n - 1 ) d
150 = 2 + (n - 1 ) 2
150 = 2 + 2n - 2
150 = 2n
n = 150 / 2
n = 75
SUM ;
Sn = n / 2 { 2a + ( n - 1 ) d }
= 75/2 { 4 + 148 }
= 75/2 {152}
= 5700
HOPE YOU WILL LIKE IT ♥♥
Series = 2,4,6,.........150
According to A.P.
a = 2
d = 2
a n = 150
a n = a + ( n - 1 ) d
150 = 2 + (n - 1 ) 2
150 = 2 + 2n - 2
150 = 2n
n = 150 / 2
n = 75
SUM ;
Sn = n / 2 { 2a + ( n - 1 ) d }
= 75/2 { 4 + 148 }
= 75/2 {152}
= 5700
HOPE YOU WILL LIKE IT ♥♥
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