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06 Apr 2022, 05:30
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B
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Difficulty:
55%
(hard)
Question Stats:
67% (02:15) correct
33%
(02:08)
wrong
based on 518
sessions
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A yacht club conducts a training race every Friday and Sunday during the summer months weather permitting. If the club was able to conduct a race every Friday and Sunday in the month of July, how many races were there that month?
(1) There were five Tuesdays in the month.
(2) The twenty-fifth of July was a Thursday.
Are You Up For the Challenge: 700 Level Questions
(1) There were five Tuesdays in the month.
(2) The twenty-fifth of July was a Thursday.
Are You Up For the Challenge: 700 Level Questions
30 Apr 2022, 07:52
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Bunuel
July has \(31 \) days , hence \(28+3\) , hence it has \(4\) weeks and \(3\) extra days
(1) There were five Tuesdays in the month.
This is only possible if one of the extra days were a Tue. So we could have
Sun, Mon, Tue (i)
Mon, Tue ,Wed, (ii)
Tue , Wed ,Thu (iii)
If (i) were true we have an extra Sunday hence there will be ONE extra race .
If (ii) and (iii) were true , we could not have an extra race.
Since we are getting two different number of races. This is INSUFF.
(2) The twenty-fifth of July was a Thursday.
We can easily calculate that \(29\)th, \(30\)th and \(31\)th days of July were Mon, Tue and Wed.
Hence the \(28\)th day was a Sunday.
Which means there were \(4\) whole weeks each beginning with Mon and ending on a Sun, excluding the \(3 \) extra days
Hence there were four Fridays and four Sundays and a total of \(8\) races.
SUFF.
Ans B
03 Sep 2024, 02:33
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The ques asks for number of Friday and Sunday in that month of july.
The month of july has 31 days : it means 4*7+3 days - 4 complete weeks and 3 additional days.
St 1) There can be 5 tuesday only if one of the additional days is a Tuesday. For example, we might have:
- Sun, Mon, Tue (i)
- Mon, Tue, Wed (ii)
- Tue, Wed, Thu (iii)
Number of Sundays can be 5 in case (i) and 4 in other cases.
NOT Suff.
St 2) The twenty-fifth of July was a Thursday. Here, we can construct the complete calender for that month and find the number of days for Sunday and Friday.
Sufficient.
Answer B
The month of july has 31 days : it means 4*7+3 days - 4 complete weeks and 3 additional days.
St 1) There can be 5 tuesday only if one of the additional days is a Tuesday. For example, we might have:
- Sun, Mon, Tue (i)
- Mon, Tue, Wed (ii)
- Tue, Wed, Thu (iii)
Number of Sundays can be 5 in case (i) and 4 in other cases.
NOT Suff.
St 2) The twenty-fifth of July was a Thursday. Here, we can construct the complete calender for that month and find the number of days for Sunday and Friday.
Sufficient.
Answer B
Bunuel
