Question

Determine the common ratio r of an increasing
geometric progression for which the first term
is 5 and third term is 20​

Answer 1

Step-by-step explanation:

tn=ar power n-1

a=5 as first term is 5

third term is 20 ,t3=5r power 3-1(t3=20)

20=5r power2

20/5=r power2

4=r power2

r=root 4

r=2

SO THE COMMON RATIO OF GP IS 2

HOPE U UNDERSTOOD