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21 Mar 2023, 01:30
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E
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Difficulty:
25%
(medium)
Question Stats:
75% (02:07) correct
25%
(01:56)
wrong
based on 65
sessions
History
Date
Time
Result
Not Attempted Yet
Before Race R, which is 1,500 meters, Peter's best time in swimming was 21 minutes. Did Peter beat this time in Race R ?
(1) Peter took between 0.3 and 0.4 hours to swim 1,500 meters in Race R.
(2) Peter took between 1,200 and 1,300 seconds to swim 1,500 meters in Race R.
(1) Peter took between 0.3 and 0.4 hours to swim 1,500 meters in Race R.
(2) Peter took between 1,200 and 1,300 seconds to swim 1,500 meters in Race R.
21 Mar 2023, 02:28
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Before Race R, which is 1,500 meters, Peter's best time in swimming was 21 minutes. Did Peter beat this time in Race R ?
(1) Peter took between 0.3 and 0.4 hours to swim 1,500 meters in Race R.
0.3* 60 = 18 minutes and 0.4*60 = 24 minutes
So, we cannot say whether Peter beat his time of 21 minutes.
Not sufficient.
(2) Peter took between 1,200 and 1,300 seconds to swim 1,500 meters in Race R.
1200 seconds = 20 minutes
1300 seconds = 21 minutes and 4 seconds
Again we cannot say whether Peter beat his time of 21 minutes.
Not sufficient
Statement 1 and 2 together
Again, we are not sure whether Peter beat his time of 21 minutes.
Not Sufficient
Answer E
(1) Peter took between 0.3 and 0.4 hours to swim 1,500 meters in Race R.
0.3* 60 = 18 minutes and 0.4*60 = 24 minutes
So, we cannot say whether Peter beat his time of 21 minutes.
Not sufficient.
(2) Peter took between 1,200 and 1,300 seconds to swim 1,500 meters in Race R.
1200 seconds = 20 minutes
1300 seconds = 21 minutes and 4 seconds
Again we cannot say whether Peter beat his time of 21 minutes.
Not sufficient
Statement 1 and 2 together
Again, we are not sure whether Peter beat his time of 21 minutes.
Not Sufficient
Answer E
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