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09 Mar 2022, 02:30
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A
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If x and y each represent a single digit, does the number 8.3xy round to 8.3 when it is rounded to the nearest tenth?
(1) x = 5
(2) y = 9
(1) x = 5
(2) y = 9
09 Mar 2022, 19:09
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IMO: A
8.3xy rounded to the nearest tenth will be 8.3 when x>=5.
We need to know if x>=5.
(1) x = 5
=> 8.3xy = 8.35y
= 8.3 when rounded to nearest tenth.
Sufficient.
(2) y = 9
=> 8.3xy = 8.3x9
here x can be any integer from 0 to 9
and term can be 8.3 or 8.4 when rounded to nearest tenth.
Insufficient.
8.3xy rounded to the nearest tenth will be 8.3 when x>=5.
We need to know if x>=5.
(1) x = 5
=> 8.3xy = 8.35y
= 8.3 when rounded to nearest tenth.
Sufficient.
(2) y = 9
=> 8.3xy = 8.3x9
here x can be any integer from 0 to 9
and term can be 8.3 or 8.4 when rounded to nearest tenth.
Insufficient.
12 Mar 2022, 08:38
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8.3xy rounded to the nearest tenth will be 8.3 when x>=5.
We need to know if x>=5.
(1) x = 5
=> 8.3xy = 8.35y
=8.4 when rounded to nearest tenth.
Definite no. sufficient
2)y = 9
=> 8.3xy = 8.3x9
here x can be any integer from 0 to 9
and term can be 8.3 or 8.4 when rounded to nearest tenth.
Insufficient.
A is the correct option
Posted from my mobile device
We need to know if x>=5.
(1) x = 5
=> 8.3xy = 8.35y
=8.4 when rounded to nearest tenth.
Definite no. sufficient
2)y = 9
=> 8.3xy = 8.3x9
here x can be any integer from 0 to 9
and term can be 8.3 or 8.4 when rounded to nearest tenth.
Insufficient.
A is the correct option
Posted from my mobile device
