Math, asked by ayushlohar26, 1 year ago

AP: 3,8,13,18 ka konsa pad 78 hai

Answers

Answered by TheLifeRacer
5
Hii

a1 = 3

d = a2 - a1 = 8 - 3 = 5

tn = a + (n - 1 ) d

78 = 3 + (n - 1) 5

78 = 3 + 5n - 5

80 = 5n

n = 16

16 va pad hai

___________
Hope helps !
Answered by kritisingh18
0
hey mate
here is ur answer
MUGHE HINDI ME NHI AATA USKE LIYE SRRY
BY THE WAY UR ANSWER IS

a=3
d=8-3
=5
tn=78
tn=a+(n-1)*d
78=3+(n-1)5
78-3=5n-5
75=5n-5
75+5=5n
80=5n
5n=80
n=80/5
n=16ans



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