There is a decimal point missing from the question. I guess it is after the zero:
0.5454545... to the nearest tenth is 0.5
If it is before the zero:
0.05454545... to the nearest tenth is 0.1
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It is 232.4 when rounded to the nearest tenth
It is then 20.2 when rounded to the nearest tenth
61.52 rounded to nearest tenth = 61.5
3934.9 is rounded to the nearest tenth.
1.4