complete the number patterns and tell rule

Mathematics
Tutor: None Selected Time limit: 1 Day

 30,10,60,20

Oct 9th, 2015

Thank you for the opportunity to help you with your question!

LET n be the position of a number in the series

If n is odd

rule is 

N = No +15*(n-1)

N= 30 + 15*(n-1

IF n IS EVEN THEN

the rule is 

N = 5* n


the fith number will thus be

N = 30+ 15(5-1)

= 30 +60

= 90

the sixth number will be

N= 5*n

= 5*6

=30

Please let me know if you need any clarification. I'm always happy to answer your questions.
Oct 9th, 2015

what the rule

Oct 9th, 2015

need clarification

Oct 9th, 2015

RULE IS

If n is odd 

N = No +15*(n-1)

N= 30 + 15*(n-1

IF n IS EVEN THEN

the rule is 

N = 5* n

Where n is the position of a number in the series

AND N is the actual number

Oct 9th, 2015

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