Question

which pattern is follow in 5,21,81,241 is ​

Answer 1

Answer:

x multiply 4+1

Step-by-step explanation:

5×4=20+1=21

20×4=80+1=81

80×4=320+1=321

( In question,last number is 321, not 241)

Answer 2

Answer:

(answer is in attachment )