Answer-<p>The number of terms in the sequence 5, 20, 80, 320,&hellip;&hellip;&hellip;&amp...

Question

Answer-&lt;p&gt;The number of terms in the sequence 5, 20, 80, 320,&amp;hellip;&amp;hellip;&amp;hellip;&amp...

Accepted Answer

The given sequence is 5, 20, 80, 320, helliphelliphellip., 5120 We can see that, the given series is a geometric progression with common ratio 4. nth term of a geometric progression is given as arn-1 Where, a  first term, r  common ratio there4 5 times 4n-1  5120 rArr 4n-1  51205  1024 rArr n ndash 1  5 rArr n  6

The number of terms in the sequence 5, 20, 80, 320,……………., 5120 is:

Detailed Solution

More Series Questions

Relevant for Exams:

Hey! Ask a query

Please Register/Login