There are 10 statements written on a piece of paper:
1. At least one of statements 9 and 10 is true.
2. This either is the first true or the first false statement.
3. There are three consecutive statements, which are false.
4. The difference between the numbers of the last true and
the first true statement divides the number, that is to be
found.
5. The sum of the numbers of the true statements is the
number, that is to be found.
6. This is not the last true statement.
7. The number of each true statement divides the number,
that is to be found.
8. The number that is to be found is the percentage of true
statements.
9. The number of divisors of the number, that is to be
found, (apart from 1 and itself) is greater than the sum of
the numbers of the true statements.
10. There are no three consecutive true statements.
Find the minimal possible number?
Answer / guest
The numebr is 420.
If statement 6 is false, it creates a paradox. Hence,
Statement 6 must be true.
Consider Statement 2:
? If it is true, it must be the first true statement.
Otherwise, it creates a paradox.
? If it is false, it must be the second false statement.
Otherwise, it creates a paradox.
In both the cases, Statement 1 is false.
As Statement 1 is false, Statement 9 and Statement 10 both
are false i.e. there are three consecutive true statements.
1 2 3 4 5 6 7 8 9 10
False - - - - True - - False False
Let\'s assume that Statement 3 is false i.e. there are no
three consecutive false statements. It means that Statement
2 and Statement 8 must be true, else there will be three
consecutive false statements.
1 2 3 4 5 6 7 8 9 10
False True False - - True - True False False
Also, atleast two of Statements 4, 5 and 7 must be true as
there are three consecutive true statements.
According to Statement 8, the number that is to be found is
the percentage of true statements. Hence, number is either
50 or 60. Now if Statement 7 is true, then the number of
each true statement divides the number, that is to be found.
But 7 and 8 do not divide either 50 or 60. Hence, Statement
7 is false which means that Statement 4 and 5 are true. But
Statement 5 contradicts the Statement 8. Hence, our
assumption that Statement 3 is false is wrong and Statement
3 is true i.e. there are 3 consecutive false statements
which means that Statement 8 is false as there is no other
possibilities of 3 consecutive false statements.
Also, Statement 7 is true as Statement 6 is not the last
true statement.
1 2 3 4 5 6 7 8 9 10
False - True - - True True False False False
According to Statement 7, the number of each true statement
divides the number, that is to be found. And according to
Statement 5, the sum of the numbers of the true statements
is the number, that is to be found. For all possible
combinations Statement 5 is false.
There 3 consecutive true statements. Hence, Statement 2 and
Statement 4 are true.
1 2 3 4 5 6 7 8 9 10
False True True True False True True False False False
Now, the conditions for the number to be found are:
1. The numebr is divisible by 5 (Statement 4)
2. The numebr is divisible by 2, 3, 4, 6, 7 (Statement 7)
3. The number of divisors of the number, that is to be
found, (apart from 1 and itself) is not greater than the sum
of the numbers of the true statements. (Statement 9)
The minimum possible number is 420.
The divisors of 420, apart from 1 and itself are 2, 3, 4, 5,
6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84,
105, 140, 210. There are total of 22 divisors. Also, the sum
of the numbers of the true statements is 22 (2+3+4+6+7=22),
which satisfies the third condition.
| Is This Answer Correct ? | 1 Yes | 0 No |
consider 3 by 3 matrix & take 1-9 numbers but not repeat the numbers add each row and column then each row and column has the answer 13 how?
In a certain year, the number of girls who graduated from City High School was twice the number of boys. If 3/4 of the girls and 5/6 of the boys went to college immediately after graduation, what fraction of the graduates that year went to college immediately after graduation?
sir i need catholic syrian bank previous question papers fully. it will be helpful for me to greater extend .please do the needful to me.
To move a Safe, two cylindrical steel bars 7 inches in diameter are used as rollers. How far will the safe have moved forward when the rollers have made one revolution?
If one person sends the e-mail to two friends, asking each of them to copy the mail and send it to two of their friends, those in turn send it to two of their friends and so on. How many e-mails would have been sent by the time it did 30 sets?
Certain words are coded as follows : BEAR-9281, DRUM-0683,PRY- 485 AND DOOR-7899.What is the code for ‘R’?
Substitute digits for the letters to make the following Division true Y F Y ----------- A Y | N E L L Y | N L Y ---------------- P P L P N H ---------- N L Y N L Y ---------- 0 0 0 Note that the leftmost letter can't be zero in any word. Also, there must be a one-to-one mapping between digits and letters. e.g. if you substitute 3 for the letter N, no other letter can be 3 and all other N in the puzzle must be 3.
Karan bought a little box of midget matches, each one inch in length. He found that he could arrange them all in the form of a triangle whose area was just as many square inches as there were matches. He then used up six of the matches, and found that with the remainder he could again construct another triangle whose area was just as many square inches as there were matches. And using another six matches he could again do precisely the same. How many matches were there in the box originally? Note that the match-box can hold maximum of 50 matches.
1) You have 8 coins. 3 of them weigh x units, 3 y units, 1 a units and 1 b units. They are all mixed and look identical. You have to find the lightest coin in minimum number of weighing .
9 Answers Bhel, Mechanical, Microsoft, Oracle,
do u know about sbi clerical interview pattern guyssss?
0 Answers State Bank Of India SBI,
Q16. A sheet of paper has statements numbered from 1 to 40. For all values of n from 1 to 40, statement n says: 'Exactly n of the statements on this sheet are false.' Which statements are true and which are false?
Arrange these words into a romantic word D P G E O D S?