Question

1800,540,162,48.6 find the missing

Answer 1

Answer:

14.5

Step-by-step explanation:

Here, given that a geometrical series.

That is 1800, 540, 162, 48.6.

Lets take a1= 1800 , a2=540, a3=162 and a4=48.6

$\frac{a2 }{a1}=\frac{540}{1800}  =0.3$

$a3/a2=162/540=0.3$

$a4/a3=48.6/162=0.3$$General Form: an=a1×rn-1$$an=1800×0.3^(n-1)$$a5 =a1×r5-1  =a1×r4 =1800×0.34 =14.5800023174287$