7 23 55 109 191 ? find the missing tream
Answers
Answer:
307
Step-by-step explanation:
3³-2²= 23
4³-3²= 55
5³-4²= 109
6³-5²= 191
7³-6²= 307
Hope it helps u
307 is the missing term.
7 23 55 109 191 307
Step-by-step explanation:
Given:
7 23 55 109 191 ?
To find:
The missing term
Solution:
- This is a numerical sequence thus arranged orderly to form a series.
- This series in the pattern of (2³-1², 3³-2², 4³-3², 5³-4², 6³-5², 7³-6² )and so on.
The first term is in the pattern (2³-1²), Thus the first term is 7.
7⇒ 2³-1²
⇒8-1 =7
The second term is in the pattern (3³-2²), Thus the second term is 23.
23⇒3³-2²
⇒27-4 =23
The third term is in the pattern (4³-3²), Thus the first term is 55.
55⇒4³-3²
⇒64-9 =55
The fourth term is in the pattern (5³-4²), Thus the first term is 109.
109⇒5³-4²
⇒125-16 =109
The fifth term is in the pattern (6³-5²), Thus the first term is 191.
191⇒6³-5²
⇒216-25
The missing term (sixth term) in the sequence is( 7³-6²)
⇒343-36 =307.
Hence,
7 23 55 109 191 307.