in A.P. there are 60 terms in which first term is 8 and last term is 185 then find its 31st term
Answers
Answered by
30
Hey Mate!
~~~~~~~~
Here is your answer :
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Given,
First term ( a ) = 8
last term = 185
a + 59d = 185
8 + 59d = 185
59d = 185 - 8
59d = 177
d = 177/59
d = 3
Then,
31st term = a + 30d
= 8 + 30 (3)
= 8 + 90
= 98
HOPE THIS HELPS U...
~~~~~~~~
Here is your answer :
==============================
Given,
First term ( a ) = 8
last term = 185
a + 59d = 185
8 + 59d = 185
59d = 185 - 8
59d = 177
d = 177/59
d = 3
Then,
31st term = a + 30d
= 8 + 30 (3)
= 8 + 90
= 98
HOPE THIS HELPS U...
Answered by
11
Hey !!
Here's your answer.. ⬇⬇
Given :- a = 8
last term = 185
Solution :-
last term = a + ( n - 1 ) d
185 = 8 + ( 60 - 1 ) d
185 = 8 + ( 59 ) d
185 - 8 = 59d
177 = 59d
d = 177/59
d = 3
T31 = a + ( n - 1 ) d
= 8 + ( 31 - 1 ) 3
= 8 + ( 30 ) 3
= 8 + 90
= 98
HOPE IT HELPS..
THANKS ^-^
Here's your answer.. ⬇⬇
Given :- a = 8
last term = 185
Solution :-
last term = a + ( n - 1 ) d
185 = 8 + ( 60 - 1 ) d
185 = 8 + ( 59 ) d
185 - 8 = 59d
177 = 59d
d = 177/59
d = 3
T31 = a + ( n - 1 ) d
= 8 + ( 31 - 1 ) 3
= 8 + ( 30 ) 3
= 8 + 90
= 98
HOPE IT HELPS..
THANKS ^-^
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