find the 20th term from the last 3,8,13,....,253
Answers
Answered by
4
a=253
d=248-253
=-5
An= a+(n-1)d
= 253 +(20-1)-5
=253+19×(-5)
=253-95
= 158
d=248-253
=-5
An= a+(n-1)d
= 253 +(20-1)-5
=253+19×(-5)
=253-95
= 158
Answered by
2
Here is ur answer
First term ( a) = 253
common difference (d) = 5
so , a20 = a+ 19d
= 253 + 19× (-5)
= 253 - 95
= 158
Therefore, 20th term of an a.p. from the last is 158
HOPE IT HELPS U☆☆☆
First term ( a) = 253
common difference (d) = 5
so , a20 = a+ 19d
= 253 + 19× (-5)
= 253 - 95
= 158
Therefore, 20th term of an a.p. from the last is 158
HOPE IT HELPS U☆☆☆
Similar questions