Answer :

poojan
given reema types 540 words per 30 min(half an hour)
per a minute she can type = 540/30 = 18 words 
then per 6 minutes she can type 6×18 words =108 words she can type in 6 minutes
jithuchly
half an hour=30 m
total words=540
total words in one minute=540/30=90/5=18
total words in 6 minutes=6*18=108

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