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Updated on: 22 Jan 2020, 08:58
Originally posted by archieprima on 22 Jan 2020, 08:56.
Last edited by Bunuel on 22 Jan 2020, 08:58, edited 1 time in total.
Last edited by Bunuel on 22 Jan 2020, 08:58, edited 1 time in total.
Renamed the topic, edited the question and added the OA.
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12%
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based on 34
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Is the integer x equal to 81?
(1) x is the square of an integer.
(2) 80 < x < 90
(1) x is the square of an integer.
(2) 80 < x < 90
22 Jan 2020, 10:22
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S1: x is the square of an integer.
x can be any value.... Not Sufficient.
S2: 80 < x < 90
In this case also, x can be any value.... Not Sufficient.
S1+S2
Square of integers(positive or negative) 8,9,10...be 64, 81, 100.
Only 81 satisfies.......................Sufficient
Option C
x can be any value.... Not Sufficient.
S2: 80 < x < 90
In this case also, x can be any value.... Not Sufficient.
S1+S2
Square of integers(positive or negative) 8,9,10...be 64, 81, 100.
Only 81 satisfies.......................Sufficient
Option C
22 Jan 2020, 11:13
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Is the integer x equal to 81?
(1) x is the square of an integer.
—> x = 1, 4, 9, . . . . 64, 82, 100, . . .
Insufficient
(2) 80 < x < 90
—> x = 81, 82, 83,. . . 89
Insufficient
Combining (1) & (2),
x = 81
Sufficient
Option C
Posted from my mobile device
(1) x is the square of an integer.
—> x = 1, 4, 9, . . . . 64, 82, 100, . . .
Insufficient
(2) 80 < x < 90
—> x = 81, 82, 83,. . . 89
Insufficient
Combining (1) & (2),
x = 81
Sufficient
Option C
Posted from my mobile device
