Latest TCS Aptitude Question SOLUTION: The Jumbo circus is performing in the city and the jumbo circus\' main attraction is a group performance by a variety of performers. In this group belonging to the same category we

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(#M40002444) TCS question Keep an EYE

The Jumbo circus is performing in the city and the jumbo circus' main attraction is a group performance by a variety of performers. In this group belonging to the same category weight the same. The musicians are heavier than singers and the dancers are lighter than guitarist. Further the artist have same weight as the dancers. The average height of the above mentioned people reduces by 2cm if I replace the guitarist with a joker. Find the height of the joker, if the height of the guitarist is 184cm
Option
a) 154cm
b) 171cm
c) 158 cm
d) 160cm

Asked In TCS Sivakumar (12 years ago)

Unsolved Read Solution (24)

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Read Solution (24) :

Varadsingh Pardeshi  (11 years ago)

If we assume Musician, Singer, Dancer, Guitarist and Artist as single people and then find there average it becomes easy.
(M+S+D+G+A)/5 = X ==> (M+S+D+A)/5 + 184/5 = X ==> 184/5 = X-(M+S+D+A)/5
(M+S+D+J+A)/5 = X-2 ==> (M+S+D+A)/5 + J/5 = X-2 ==> J/5 = X-(M+S+D+A)/5-2
==> J/5 = 184/5 - 2
==> J = 174....(ANSWER)

Is this solution Helpfull? Yes (43) | No (2)  

Shivam Chaturvedi  (11 years ago)

How has everyone calculated that there are 13 members in the group?
Its not written anywhere that you have 13 members!!!
There are 5 types of people where there is a single artist and a single guitarist and the musician, singers and dancers are multiple.
However, what I think, if everybody can be in multiple numbers, then if each one's height is compromised by 2cms, then the 4 kind of people will get their heights compromised by 4*2 cms i.e. 8 cms, in which case the answer must be a reduction of 8cms or a multiple of it i.e. 176, 168, or 160 out of which 160 is an option that we have.

Is this solution Helpfull? Yes (18) | No (8)  

sabarish  (12 years ago)

answer is 158cm
if there are 13 members in group
171 is impossible answer because (184-171=13)which is not multiple of 2
184 is not possible because in question guitarist is single

Is this solution Helpfull? Yes (9) | No (13)  

Rahul Pandey  (11 years ago)

we can write (M+S+D+A+G)/5-(M+S+D+A+J)=2
As A=D
so (M+S+2D+G)/5-(M+S+2D+J)/5=2
G/5-J/5=2
-> 184/5-J/5=2
->J=174.................THIS IS THE RIGHT ANSWER

Is this solution Helpfull? Yes (9) | No (1)  

karthi vr  (12 years ago)

any one explain clearly

Is this solution Helpfull? Yes (8) | No (5)  

vivek gaurav  (11 years ago)

174
(m+S+d+G+A)/5=x
(m+s+d+a+j)/5=x-2.on solving dese 2 equation with g=184,we get j=174

Is this solution Helpfull? Yes (7) | No   

hanumesh p  (11 years ago)

there r 13 people, one person( guitarist) is replaced. then 12*2cm=24cm. average height is 184
result= 184-24=160cm. but after the person( guitarist) is replaced by joker then weight is decreased by 2cm . therefore 158cm (c)is the right one

Is this solution Helpfull? Yes (4) | No (5)  

Jubisha  (11 years ago)

there is not given that how many members r there in a group so how can we assume 13...cant say????

Is this solution Helpfull? Yes (3) | No (2)  

Arun  (11 years ago)

answer is 158 cm.
184-x=26
184-26=x
x=158 cm (Ans)

Is this solution Helpfull? Yes (2) | No (3)  

pragya lachhwani  (11 years ago)

there are 5 member in this group than the average of this group is
(m+s+d+g+a)/5= a. eq-1
guitarist height is given than
(m+s+d+a+184)/5= a. eq-2
when we replace the g with joker than i will become
(m+s+d+a+j)/5= a-2
than we have to find the jokers height
=>j/5= a-[(m+s+d+a)/5]-2
=>j/5= (184/5)-2. by eq. 2
=> j= 174. answer

Is this solution Helpfull? Yes (2) | No   

Jisha George  (12 years ago)

3018 is the ans.it is the 10th element.so for 1,1 each occupying 2 byte 10th element will be at 3018

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

jyotish r  (11 years ago)

there is some mistake in the question.
with the given information, what we can say is that the ht of joker is (184-2n),where n>=7(7 is the min. number of people in the group);so 171 is wrong.

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

Saurav Gupta  (11 years ago)

i don't think 158 is the ri8
may be there is 12 or 15 menbers
then the ans will be 160or 154 according to these peoples....

Is this solution Helpfull? Yes (1) | No (2)  

Rishabh Jain  (11 years ago)

Lets say D(N) denotes the last non zero digit of factorial, then the algo says
D(N)=4*D[N/5]*D(Unit digit of N)[If tens digit of N is odd]
D(N)=6*D[N/5]*D(Unit digit of N)[If tens digit of N is even]; Where [N/5] is greatest Integer Function

#Problem 18
Find the last non zero digit of 26!*33!.

Solution Scheme and Approach
D(26)=6*D[26/5]*D(6)=6*D(5)*D(6)=6*2*2=4[D(5) means last non zero digit of 5!=120 which is 2, same for D(6)]
D(33)=4*D[33/5]*D(3)=4*D(6)*D(3)=4*2*6=8
look at this
Hence last non aero digit of 26!*33!=4*8=2
Remember
D(1)=1 D(2)=2 D(3)=6 D(4)=4 D(5)=2 D(6)=2 D(7)=4 D(8)=2 D(9)=8

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TARUN  (11 years ago)

assume everyone as single people
(m+s+d+g+a)/5 = X
means
m+s+d+g+a = 5X - 1st equation

now if i replace guitarist with joker then equation is
m+s+d+A+j = 5(X-2)
m+s+d+A+j = 5X-10 - 2nd equation

now solving 1st and 2nd equation u can write it as
5X-g+j = 5x-10
j= g-10
as given g = 184
j = 174

now in starting we assumed everyone as single one so it means height of people reduces in multiple of 10
so 174 164 154 144 are expected answer
from option u can easily choose 154cm

ans (a)

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Anand  (11 years ago)

answer is 158cm
if there are 13 members in group
171 is impossible answer because (184-171=13)which is not multiple of 2
184 is not possible because in question guitarist is single

Is this solution Helpfull? Yes | No (4)  

teja  (11 years ago)

plz anyone explain the ans clerly

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vivek kumar  (11 years ago)

184-2*4=176

Is this solution Helpfull? Yes | No (1)  

ajay kumar b  (11 years ago)

how can we know that there was only 13 members or more numbers in a group

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sampath  (11 years ago)

plz send me the tcs latest placement paper pattern and questions to my ID.
sampathms89@gmail.com

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Raunak MAnchanda  (10 years ago)

According to the logic 174 should be the answer,but where is the mistake

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RAGHUqwwe  (10 years ago)

174
(m+s+d+g+a)/5 - (2) = (m+S+d+J+a)/5
hence
g-j=10
j=g-10
j=184-10=174

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Angurajan  (10 years ago)

Assume that tthere are 13 members .if one person replaced .there will be 12 .but joker has been replaced.if 2cm reduced 13*2=26.184_26=158

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PURIDI MOUNIKA  (10 years ago)

Actually i didnot imagine the triangle.Will anyone show the diagram plss?

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