Find the 20th term from the end of the A.P 3,8,13,..........,253
Answers
Answered by
18
It's simple friend!!
Let's assume a= 253, d= -5
Therefore, A.P.= 253, 248,243,238,......
Now,
t20= 253+ 19(-5)
= 253-95
= 158
HOPE IT HELPS YOU!!
MARK IT AS BRAINLIEST PLZZ!!
Let's assume a= 253, d= -5
Therefore, A.P.= 253, 248,243,238,......
Now,
t20= 253+ 19(-5)
= 253-95
= 158
HOPE IT HELPS YOU!!
MARK IT AS BRAINLIEST PLZZ!!
Answered by
3
formula a20 = a+ (n-1) d
here , a= 3
n=20
d= comman difference = 5
a20= 3+ (20-1) * 5
= 3+ 19*5
=3+95 = 98
a20= 98 ans
here , a= 3
n=20
d= comman difference = 5
a20= 3+ (20-1) * 5
= 3+ 19*5
=3+95 = 98
a20= 98 ans
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