Question

(Active to passive voice change)
He has worked out the answers carefully (voice change)
plz help me
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Answer 1

Answer:

$\bold\red{Question : - }\tt{He \: has \: worked \: out \: the \: answers \: carefully \: } \\ \bold\red{Answer : - } \tt{The \: answers \: have \: been \: worked \: out \: by \: him \: carefully}$