Infosys Placement Paper Aptitude - Puzzle TAGORE INTERNATIONAL SCHOOL, DELHI-16 Jul 2006

Posted by FreshersWorld

7 Jan, 2012

INFOSYS PAPER ON 16th JULY 2006 AT DELHI

hi all...do refer old question papers..they help a lot.

apptitude can b prepared from R.S aggarwal.

u hav to fill a form first,n den u hav an aptitude test n den simple english test.

here are d questions of aptitude test,wich i gave recently.

after the test,i had my interview next day..its was HR..some were asked puzzles too..do pray for me too as i m waiting for my result..thanx n best of luck

Q1. what are the number of ways of arranging numbers on a dice such that 1&6, 2&5, 3&4 always are on opposite sides?

Q2. A puzzle has 100 pieces.By combining 2 pieces at a time, a move is made.In how many minimum number of ways the puzzle can be completed??

Ans:- 49+49=98 moves

Q3.I went to kalota.there is a belief that men speak truth always,women speak alternately i.e. if her first statement is true, then her next statement will b false.same goes for boy n girl..

I asked a child passing by-? are you a boy orgirl???

Got reply in their language so culdnt understand. Fortunately their parents kno our language. ?kibi said, ?I m a boy? ? said the first parent.?no, kibi lied.kibi is a girl? said the other parent.

a)whether kibi is a girl or a boy?

b)Which parent made the first statement??

Ans:- a) girl

b)mother

Q4.a person picked first marble,left one,picked the next,left two, picked the next, left three n so on until he got the last marble.at the end he observed that he has picked 5% of the total..how many has he picked actually??

Q5. there are two system of temperatures such that 14 degrees in system A is equal to 36 degrees in system B n 133 degrees in system A is equal to 87 degrees in system B. at what degree will these systems be equal.??

Ans:- (A-14)/133= (B-36)/87

Put A=B n get the answer?it is 77.6 degrees

Q6 two friends set their clocks to same time.1st one's clock lag 1min/hr and other's gain it by 2 min/hr...aftr sometime when they met again they found that the diff between their watches was 1 hr..tell me how much time ago was their watch showing same time....

Ans:- first watch lag = 1min per hour

Second watch lag = 2 min per hour

So toatal lag = 3 min per hour

i.e 3 min ------------------- in 1 hour

1hour(60 min) lag-------------- (1hour * 60 min)/ 3 min

Ans =20 hours

Q7. A man walks at 4km/hr for some time then up the hill at 3km/hr and then down the hill at 4km/hr and then through the same plane back to home at 4km/hr...total time he took for it was 6 hrs i.e. he started at 3 pm and came back at 9 pm...tell the distance he travelled one side....

Ans:- let plain b x km and hill be y km so

x/4 + y/3 + x/4 + y/4 = 6 (speed= distance/time)

x+y=12 ans

Q8. some question on average speed-

Ans= 2ab/(a+b) --- a and b are two different speeds

Q9 complete the series-

a)1,2,3,5,16,_

b)1,2,3,8,_,224

Ans a) 2^{2 }-1 =3

3^{2 }? 2^{2 }= 5

5^{2 }- 3^{2} =16

16^{2 }- 5^{2 }= 231 ans

b) 2^{2 }-1 =3

3^{2 }-1=8

8^{2 }-1= 63 ans

Q10. there is a person who prepares window panes. There are certain conditions for preparing left n right display panes using stones- diamond,garnet,opal, sapphire, ruby and one more stone(dnt remember the name..let it be X. each pane can hav three stones only.

Conditions:-

a)sapphire n garnet has to be together.

b)Diamond is always in right display pane

c)X always in left display pane

1)what is the possible combination of left display?

Ans so on?

BEST OF LUCK..

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Q2. A puzzle has 100 pieces.By combining 2 pieces at a time, a move is made.In how many minimum number of ways the puzzle can be completed??

Ans:- 49+49=98 moves

Q3.I went to kalota.there is a belief that men speak truth always,women speak alternately i.e. if her first statement is true, then her next statement will b false.same goes for boy n girl..

I asked a child passing by-? are you a boy or girl???

Got reply in their language so culdnt understand. Fortunately their parents kno our language. ?kibi said, ?I m a boy? ? said the first parent.?no, kibi lied.kibi is a girl? said the other parent.

a) whether kibi is a girl or a boy?

b) Which parent made the first statement??

Ans:- a) girl

b) mother

Q4.a person picked first marble,left one,picked the next,left two, picked the next, left three n so on until he got the last marble.at the end he observed that he has picked 5% of the total..how many has he picked actually??

Q5. there are two system of temperatures such that 14 degrees in system A is equal to 36 degrees in system B n 133 degrees in system A is equal to 87 degrees in system B. at what degree will these systems be equal.??

Ans:- (A-14)/133= (B-36)/87

Put A=B n get the answer?it is 77.6 degrees

Q6 two friends set their clocks to same time.1st one's clock lag 1min/hr and other's gain it by 2 min/hr...aftr sometime when they met again they found that the diff between their watches was 1 hr..tell me how much time ago was their watch showing same time....

Ans:- first watch lag = 1min per hour

Second watch lag = 2 min per hour

So toatal lag = 3 min per hour

i.e 3 min ------------------- in 1 hour

1hour(60 min) lag-------------- (1hour * 60 min) / 3 min

Ans =20 hours

Q7. A man walks at 4km/hr for some time then up the hill at 3km/hr and then down the hill at 4km/hr and then through the same plane back to home at 4km/hr...total time he took for it was 6 hrs i.e. he started at 3 pm and came back at 9 pm...tell the distance he travelled one side....

Ans:- let plain b x km and hill be y km so

x/4 + y/3 + x/4 + y/4 = 6 (speed= distance/time)

x+y=12 ans

Q8. some question on average speed-

Ans= 2ab/(a+b) --- a and b are two different speeds

Q9 complete the series-

a) 1,2,3,5,16,_

b) 1,2,3,8,_,224

Ans a) 2

^{2 }-1 =33

^{2 }? 2^{2 }= 55

^{2 }- 3^{2}=1616

^{2 }- 5^{2 }= 231 ansb) 2

^{2 }-1 =33

^{2 }-1=88

^{2 }-1= 63 ansQ10. there is a person who prepares window panes. There are certain conditions for preparing left n right display panes using stones- diamond,garnet,opal, sapphire, ruby and one more stone(dnt remember the name..let it be X. each pane can hav three stones only.

Conditions:-

a) sapphire n garnet has to be together.

b) Diamond is always in right display pane

c) X always in left display pane

1) what is the possible combination of left display?

Ans so on?