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25.
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26.
A punching machine is used to punch a circular hole of diameter two units from a square sheet of aluminum of width 2 units, as shown below. The hole is punched such that circular hole touches one corner P of the square sheet and the diameter of the hole originating at P is in line with a diagonal of the square.
[1] The proportion of the sheet area that remains after punching is:
1). (π+2)/8
2). (6-π)/8
3). (4-π)/8
4). (π-2)/4
5). (14-3π)/8
[2] Find the area of the part of the circle (round punch) falling outside the square sheet.
1). π/4
2). (π-1)/2
3). (π-1)/4
4). (π-2)/2
5). (π-2)/4
asked in CAT
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27.
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29.
Consider the following figure and answer the item that follows:
15 48
A square is divided into four rectangles as shown above. The lengths of the sides of rectangles are natural numbers. The areas of two rectangles are indicated in the figure. What is the length of each side of the square?
(1) 10
(2) 11
(3) 15
(4) Cannot be determined as the given data are insufficient
asked in UPSC
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30.