Question

5,25,125.........25th term

Answer 1

Hey !

Here is your answer !!

_________________


first term ( a ) = 5

common difference ( d ) = 25 - 5 = 20


25th term = ?

Using the formula

= a + ( n - 1 ) d { where n is the number of terms )

= 5 + ( 25 - 1 ) × 20

= 5 + 24 × 20

= 5 + 480

= 485

Hence your answer = 485


hope it helps !!

Answer 2

$Heya$‼

$A.P. 5,25,125,.....$

$First\: term, a = 5$

$Common\: difference, d = a2 - a1$
= 25 – 5
= 20

As we know,
$a^n=a+(n-1)d$

Now, substituting a, d and n in the above formula :-
$a^25=5+(25-1)20$
$a^25=5+24*20$
$a^25=5+480$
$a^25=485$

Hence, the 25th term of the given A.P. is 485 .