THE OFFCICAL CAT2008: DI - lOGICAL REASOING

[shivam_01]

In a society, there are five buildings, A, B, C, D and E, in a straight line in the same order. Each one of them is having different number of floors. The numbers of floors in two consecutive buildings are not consecutive numbers. One day Mr. Sharma planned to assign a number to each of these floors. He picked up one of the five buildings randomly and gave an arbitrary number to its ground floor. He then proceeded from the ground floor to the top floor, giving consecutive numbers to the floors. For example, he could give the number 41 to the ground floor, 42 to the first floor, 43, to the second floor and so on. After reaching the top floor of the building, he chose the next building randomly and numbered its ground floor as the next number after that of the top floor of the previous building and proceeded again in the previous manner. After numbering all the floors of all the buildings, he observed the following:

1. Sum of the numbers of all the top floors is 119.
2. Sum of the numbers of all the ground floors is 109.
3. The sum of all the floors of building B is 81.
4. The number of Mr. Sharma’s flat, which is at the top floor of building A, is 21.

1. Find out the sum of all the floors of building E.
61 60 55 49 31
2. Find out the number of floors in building C
1 2 3 4 5
3. What is the highest number assigned to a floor by Mr. Sharma?
28 29 30 31 32
4. If sums of all the top floors and ground floors are 134 and 114, respectively, what is the sum of all the floors of all the building?
20 24 25 30 35

[milindagrawal]

@shivam_01

my answers
1) 31
2) 1
3) 29
4) question isn't clear

[srikar2097]

Hi Shivam, I'm posting my answers. Tell me if they are right. Will post the procedure later.

1) Sum of floors of E = 31. Option(5)

2) No. of floors in C = 1. Option(1)

3) Highest no. assigned by sharma = 32. Option(5)

4) Is there something wrong with this? Since we change the sum of the top and bottom floors, we need to recalculate the entire sequence of floors for all the buildings. But the options given are 2 digit. The sum of all the floors in all the buildings will surely be a 3-digit no. Could you clarify?

[vz_abhinav]

Hello Puys,
Iam pretty weak in DI/LR ..Is there any good book available for it ?? or should I go in for IMS/Time study material.Pointers to good prep source to get basics correct is highly appreciated .
Thanks in advance,
Abhinav

[puresunshine]

Originally Posted by shivam_01

In a society, there are five buildings, A, B, C, D and E, in a straight line in the same order. Each one of them is having different number of floors. The numbers of floors in two consecutive buildings are not consecutive numbers. One day Mr. Sharma planned to assign a number to each of these floors. He picked up one of the five buildings randomly and gave an arbitrary number to its ground floor. He then proceeded from the ground floor to the top floor, giving consecutive numbers to the floors. For example, he could give the number 41 to the ground floor, 42 to the first floor, 43, to the second floor and so on. After reaching the top floor of the building, he chose the next building randomly and numbered its ground floor as the next number after that of the top floor of the previous building and proceeded again in the previous manner. After numbering all the floors of all the buildings, he observed the following:

1. Sum of the numbers of all the top floors is 119.
2. Sum of the numbers of all the ground floors is 109.
3. The sum of all the floors of building B is 81.
4. The number of Mr. Sharma’s flat, which is at the top floor of building A, is 21.

1. Find out the sum of all the floors of building E.
61 60 55 49 31
2. Find out the number of floors in building C
1 2 3 4 5
3. What is the highest number assigned to a floor by Mr. Sharma?
28 29 30 31 32
4. If sums of all the top floors and ground floors are 134 and 114, respectively, what is the sum of all the floors of all the building?
20 24 25 30 35

Could we get answers for this now. With the method. I have been tryin but not gettin it right.

[shivam_01]

i dont have the solution only keys are available
thats why i posted it here
that is

option5
option1
option5
option2

[ishi.koool]

Originally Posted by implex

so the german owns the fish

if any1 needs i can explain how i came at this chart
i dont know how people do di problems but i find it easier if i can compile a table of a sort useful to me as done in this case..

hey plz can u explain hw did u gt the result im nt rraching any conlusions myslf

[aky_akshay]

Originally Posted by shivam_01

In a society, there are five buildings, A, B, C, D and E, in a straight line in the same order. Each one of them is having different number of floors. The numbers of floors in two consecutive buildings are not consecutive numbers. One day Mr. Sharma planned to assign a number to each of these floors. He picked up one of the five buildings randomly and gave an arbitrary number to its ground floor. He then proceeded from the ground floor to the top floor, giving consecutive numbers to the floors. For example, he could give the number 41 to the ground floor, 42 to the first floor, 43, to the second floor and so on. After reaching the top floor of the building, he chose the next building randomly and numbered its ground floor as the next number after that of the top floor of the previous building and proceeded again in the previous manner. After numbering all the floors of all the buildings, he observed the following:

1. Sum of the numbers of all the top floors is 119.
2. Sum of the numbers of all the ground floors is 109.
3. The sum of all the floors of building B is 81.
4. The number of Mr. Sharma’s flat, which is at the top floor of building A, is 21.

1. Find out the sum of all the floors of building E.
61 60 55 49 31
2. Find out the number of floors in building C
1 2 3 4 5
3. What is the highest number assigned to a floor by Mr. Sharma?
28 29 30 31 32
4. If sums of all the top floors and ground floors are 134 and 114, respectively, what is the sum of all the floors of all the building?
20 24 25 30 35

@Srikar

the solution set what i got for the above question is

A-17,18,19,20,21
B-26,27,28
C-29
D-22,23,24,25
E-15,16

i think its satisfying all the conditions, so for Q3. My ans will be 29,
but ans. given by shivam is 32 and u also got the same ans.
am i going wrong some where???

[srikar2097]

Just saw your reply, is it okay if I post it tomm. Feelin real sleepy… If I type something wrong you'll be breaking your head over for nothing

[mba.yodha]

@shivam

My answers :
1) 5 (31)
2) 1
3) 2 (29)
4) 3 (25)

@srikar.. dude wen u get here can u plz post explanation for ques 3...