One person can do a certain job in twentyone minutes and another person can do the same job in
2 answers:
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Answer: a)
b) By 0.75 square meters the new area is increased.
Step-by-step explanation:
Let the length of room be l
Let the breadth of room be 'b'
As we know the formula for "Area of rectangle ":
Now, According to question, The new area of the room is 175% of the previous area.
So, a) New area of the room becomes,
So, it means Length of the room is increased by 175%, because of which the area is increased by 175%.
b) By how many square meters has the area of Megan's room increased