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12 Jul 2018, 01:12
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Difficulty:
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Question Stats:
78% (01:06) correct
22%
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wrong
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Which of the following describes the possible range of values of y?
A. \(9 < y < 11\)
B. \(5 < y < 11\)
C. \(9 < y < 15\)
D. \(5 < y < 15\)
E. \(10 < y < 20\)
Attachment:
triangle (1).jpg [ 7.65 KiB | Viewed 4152 times ]
Updated on: 12 Jul 2018, 01:33
Originally posted by sudarshan22 on 12 Jul 2018, 01:19.
Last edited by sudarshan22 on 12 Jul 2018, 01:33, edited 1 time in total.
Last edited by sudarshan22 on 12 Jul 2018, 01:33, edited 1 time in total.
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+1 for E.
11 - 5 < y-4 < 11 + 5 (Property of triangle)
6 < y - 4 < 16
6+4 < y-4+4 < 16+4 (adding 4)
10 < y < 20
Hence, E.
11 - 5 < y-4 < 11 + 5 (Property of triangle)
6 < y - 4 < 16
6+4 < y-4+4 < 16+4 (adding 4)
10 < y < 20
Hence, E.
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12 Jul 2018, 01:25
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Bunuel
Which of the following describes the possible range of values of y?
A. \(9 < y < 11\)
B. \(5 < y < 11\)
C. \(9 < y < 15\)
D. \(5 < y < 15\)
E. \(10 < y < 20\)
Attachment:
triangle (1).jpg
\(y-4+5>11\)
\(y>10\)
\(y-4<5+11\)
\(y<20\)
\(10<y<20\)
Property used - No side of a triangle can be greater than the sum of other 2 sides.
Hence E
