This is from a Pearson online graded thing, if you don't happen to recognize it. It probably would have taken 161/4 (edited) as a correct answer as well (IMO 40 1/4 is ambiguous, improper).
The software is more than capable of determining that 40.25=40+1/4 so its not really excusable (unless its specifically trying to teach fractions for middle schoolers or something)
That said, A lot of my calc 3 homework (multi variable calculus) in college was run by Pearson, and while it wasn't perfect, the fact that it was autograded with multiple attempts allowed made learning the material easy. Immediate feedback is incredible.
Fuck Pearson though, honestly. This shit is expensive and it's still got noticeable flaws. Last Pearson course I took kept trying to get me to use their shitty AI and pay extra for shit. I'm a student, not a potential customer to shake down.

18+52+37+47+56=210 for China. Each child could pick up to 3 answers. The average number of jobs the Chinese children picked was 2.
For USA/UK the average was about 1. Very few children selected more than one answer.
That's weird. What a weird poll. Were there only 5 possible choices? I would have told you I wanted to be a veterinarian at that age, if I answered at all. (I did not become a vet, I became a failure lmao)