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24 Jul 2019, 11:27
Kudos
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C
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
55%
(hard)
Question Stats:
50% (02:00) correct
50%
(01:56)
wrong
based on 8
sessions
History
Date
Time
Result
Not Attempted Yet
Two swimmers start from same end, A, of a 200 meter long swimming pool. The faster one reaches the other end, B, turns back and meets the slower one at a distance of 175 meters from the starting end. Where will the slower one be when faster one reaches the starting point.
1. Midway
2. 111 mts from A
3. 89 mts from A
4. 87.5 mts from A
5. 112.5 mts from A
1. Midway
2. 111 mts from A
3. 89 mts from A
4. 87.5 mts from A
5. 112.5 mts from A
15 Aug 2019, 00:20
Kudos
Bookmarks
Let me try.
A-------175m---------¡----25m----B
Faster (F) one covers= 200 +25 = 225m
Slower (S) one covers= 175m
Let the speed of F be 1 m/s.
So both F and S takes 225 sec.
Speed of S = 175/225 = 7/9.
So now F takes 175 sec to reach point A, so in 175 sec S would cover=
175 * 7/9 = 135.8m
So now remaining 25m of S to reach B will be deducted, so reamining is
200- 110.8 = About 90m from A.
Hence, choice C.
Posted from my mobile device
A-------175m---------¡----25m----B
Faster (F) one covers= 200 +25 = 225m
Slower (S) one covers= 175m
Let the speed of F be 1 m/s.
So both F and S takes 225 sec.
Speed of S = 175/225 = 7/9.
So now F takes 175 sec to reach point A, so in 175 sec S would cover=
175 * 7/9 = 135.8m
So now remaining 25m of S to reach B will be deducted, so reamining is
200- 110.8 = About 90m from A.
Hence, choice C.
Posted from my mobile device
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