Question

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

Answer 1

Answer:

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Step-by-step explanation:

ANSWER ::

We know that if first term = a & common ratio = r

Then the sum to infinity = a/ ( 1 - r)

a/ ( 1 - r) = 250

350/ ( 1 - r) = 250

1 - r = 350/250

1 - r = 7/5

r = - 2/5

So the common ratio = - 2/5