Just looking at census for my grandfather john alfred steele noticed that in 1901 his age was 41 then in 1911 his age was 57 Was one of these an error Juat curious Thank you
If you look at the original image it looks like 52 not 57, but either way it's fairly normal for ages not to be correct, people weren't as aware of their age as we are today, people fibbed in the hope of getting an Old Age Pension, people wanted to appear closer in age to husband/wife and so on.
Have a look at the 2 on Alexander's age.
It's always worth looking at all the pages, for example on the House and Building return you can learn a lot about the house and in this case the landlords name.
