Job interview

Orville

Hi.

I have a job interview.

It is for a job with a 3 on 3 off 12hr shift pattern.

Can some of you maths wizards tell me the average weekly hrs worked please.

Wyndham

Assume over 7 days a week...? If so, it works out that you have a six week shift pattern, then you're back to the start and repeat the six week pattern again. In that six weeks you've got 21 'on' shift days and 21 'off' days.

So 21 (shifts) by 12 (hours per shift) divided by 6 (the overall week pattern) gives an average of 42 hours a week.

Worth noting, this is actually 3 weeks with 4 days worked, and 3 weeks with 3 days worked.

Hope that helps - let me know if it doesn't make sense!

General_Grant

I would calculate as using
365 days/year
6-day cycle
=60.8333333 cycles in a year
So 36 hours/cycle = 2190 hours/year
= 42.115 hours/week (that's including holidays)

GentleGiant01

It’s interesting to see the different calculations for this. The simplest is you work 50% of the year (3 on 3 off) so (365/2)*12 = 2190 hours a year. 2190 / 53 = 42.1 hours a week 

theoretica

And I would have calculated 36 hours in 6 days - multiply by 7/6 to get from 6 days to a week = 42.