Question

Which term of the sequence 73, 69, 65, 61,
is -23

A 24
B 23
c 25
D 26​

Answer 1

Answer:

option c ,25

Step-by-step explanation:

it is a arithemitic progression where the common difference is of -4 , which will be constant throught the series ...

now let nth term be -23 ,

and apply the formula an = a1 +(n-1)d

now substitute the value , you have a1=73 , an=-23 and d=-4

so -23=73 -(n-1)4

=> -96= -(n-1)4

=> 24=n-1

=> n=25

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