The price of a dozen eggs was $1.63. The price rose m dollars. Then the price dropped $0.12 per dozen. Express the current price
2 answers:
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Answer:
A) The total duration needed to paint the room is 50 minutes.
B) To paint 64% of the room takes 32 minutes.
Step-by-step explanation:
Given as:
After 18 minutes, 64% of the room still requires painting.
Therefore, within 18 minutes, (100% - 64% = 36%) of the room has been painted
Let T minutes be the total time required to paint the entire room.
Now, according to the question
A ) Using the unitary method
∵ In total, 36% of the room is covered in 18 minutes
Thus, in total time ofi.e T =
Thus, T = 50 min
Therefore, the duration needed to paint the entire room = T = 50 minutes
Thus, the time required to finish painting the entire room is 50 minutes. Answer
B) Again
Time taken to paint 64% of the room = x minutes
∵ 36% of the room has been painted in a total of 18 minutes
Thus, 1% of the entire room gets painted in minutes
Consequently, painting 64% of the room will take × 64 minutes
i.e x =
Thus, x = 32 min
Therefore, the required time for painting 64% of the entire room = x = 32 minutes
Thus, the time required to paint 64% of the room amounts to 32 minutes. Answer