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The first term of a geometric progression is 350. If the ...

The first term of a geometric progression is 350. If the sum to infinity is 250, find the common ratio.

A.

57

B.

25

C.

25

D.

57

Correct answer is B

S=a1r (Sum to infinity of a GP)

250=3501r250(1r)=350

350=250250r350250=250r

250r=100r=100250=25