or 

my @minutes_list = map $_*10 || (), @ratio_list;

[download]

(There's nothing at all wrong with your solution. I just wanted to point out an often overlooked feature of map ... that is, it can return a list shorter than the input list, if you have the expression evaluate to the empty list for the elements to be dropped.)

In reply to Re^2: mutliplying each element of a list by the same number by almut
in thread mutliplying each element of a list by the same number by steph_bow

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