Latest TCS Aptitude Question SOLUTION: In the reading room of a library, there are 10 reading spots. Each reading spot consists of a round table with4 chairs placed around it. There are some readers such that in each oc

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In the reading room of a library, there are 10 reading spots. Each reading spot consists of a round table with4 chairs placed around it. There are some readers such that in each occupied reading spot there are different numbers of readers. If in all there are 10 readers, how many reading spots do not have even a single reader? (TCS-2011)
option
a. 3
b. 4
c. 6
d. 5

Asked In TCS nikhil pande (11 years ago)

Solved Sruthi aravind Read Solution (13)

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Read Solution (13) :

Sruthi aravind  (11 years ago)

10 reading spots, Each reading spot consists of 4 chairs placed around it so.. There are given no: readers such that in each occupied reading spot there are different numbers of readers.. .let us consider d maxm case possible : so for first table 1 person is sitting,2nd table 2 persons sit.. 10 readers equals to(1+2+3+4) so 4 tables are filled ie: 10-4=6 reading spots does not have even a single reader..
anwr = *6*

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SUMAN KUMAR  (11 years ago)

for different no of reader=1,2,3,4(total 10)
in this way only 4 reading spot is filled
so 6 is left
answer=6

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jayant narwani  (11 years ago)

as every spot has different no. of students, it is possible when first one has 1 student second has 2 until total is 10 so 1+2+3+4=10 hence 4 tables are occupied 6 are empty.

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priya  (11 years ago)

total reading spots - number of chairs.. 10-4=6.. so option c is correct

Is this solution Helpfull? Yes (4) | No (1)  

Rajkumar  (11 years ago)

In library there are 10 spots and consists of a round table with 4 chairs placed and here there are 10 different people amd they are arranged in 1,2,3,4 . that means 10=1+2+3+4 .And here 4 tables are occupied and 6 tables are remainded.. and answer is 6

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aarti singh  (11 years ago)

6
since spot may contain 1 2 3 4 students therefore 6 spots will not have even single user

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vikash kumar  (11 years ago)

reading spot with different numbers of readers :
1+2+3+4=10 readers
hence, 10-4= 6

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Harjit kaur  (11 years ago)

Each reading spot have different reader so total 10 reader are divided as 4,3,2,1 thus four table contain different reader and 6 remains so ans is 6

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deepti kochhar  (11 years ago)

c.6
1+2+3+4=10
so 6 spots do not have even a single reader

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gayathri  (11 years ago)

there are 10 reading spots so 1st table 1 reader 2nd table 2 reader 3rd table 3 reader 4th table 4 reader.so 10-4=6

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Amandeep Singh  (11 years ago)

6.
Its d ans.

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srilaxmi  (11 years ago)

6 is the ans

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Guru Pranav  (11 years ago)

4,3,2,1 It means total there are 6 tabels which has been occupied !!!

So, there are 6 vacant tables.

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