Math, asked by kanika415, 1 year ago

find the 20th term form last of A.P 3, 8, 13...... and 253

Answers

Answered by Anonymous
5
Tn = L - ( n - 1 )* d

= 253 - 19 * 5

= 253 - 95

= 158 Ans.

kanika415: thank you so much
Answered by sumitnain5715
7
As it is 20th term from last so AP is reversed...

a = 253 , d = -5 , n = 20

an = a+(n-1) d
253 + 19(-5)

253 - 95

Answer= 158

Hope it helps you and please mark as brainliest.

kanika415: thanks for solving the solution
sumitnain5715: welcome
sumitnain5715: mark as brainliest
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