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How do I solve this question

How do I solve this question-example-1
User CS Pei
by
6.8k points

1 Answer

7 votes

Answer: C

Explanation:

S =
(a)/(1-r)

a = 80, r =
-(1)/(4)

S =
(80)/(1-(-(1)/(4)))

=
(80)/((5)/(4))

=
(80*4)/(5)

= 64

User Florian Boudot
by
6.7k points