Interview Questions.

Question 1. There Are Two Water Tanks A And B, A Is Much Smaller Than B. While Water Fills At The Rate Of 1 Liter Every Hour In A, It Gets Filled Up Like, 10, 20, 40,80, one hundred sixty..In Tank B. 1/8 Th Of The Tank B Is Filled In 22 Hours. What Is The Time To Fill The Tank Fully?

Answer :

Tank B is filled in geometric development, so after 22 hrs water in tank will be = 10 * 2^21 = x/eight 

wherein x = volume of tank x = 10 * 2^24 as a result by means of geometric development we get that n-1 = 24 

so n = 25, subsequently time required is  25 hrs.

Question 2. A Train Passes A Station Platform In 36 Seconds And A Man Standing On The Platform In 20 Seconds. If The Speed Of The Train Is 54 Km/hr, What Is The Length Of The Platform?

Answer :

Speed = fifty four x5/18 m/sec = 15 m/sec.

Length of the teach = (15 x 20)m = 300 m.

Let the period of the platform be x metres.

Then,x + 300/36 = 15

 x + 300 = 540

 x = 240 m.

TCS Technical Interview Questions
Question three. 12 People a1, A2, A12 Meet And Shake Hands In A Circular Fashion. In Other Words, There Are Totally 36 Handshakes Involving The Pairs, a1, A2, a2, A3, a11, A12, a12, A1. Then Size Of The Smallest Set Of People Such That The Rest Have Shaken Hands With At Least One Person In The Set Is?

Answer :

12 x 11 / 2 = sixty six Handshakes.

Question 4. A Boat Can Travel With A Speed Of thirteen Km/hr In Still Water. If The Speed Of The Stream Is four Km/hr, Find The Time Taken By The Boat To Go 68 Km Downstream.

Answer :

Speed downstream = (13 + 4) km/hr = 17 km/hr.

Time taken to journey sixty eight km downstream = (68/17)hrs = four hrs.

Question five. Tickets Numbered 1 To 20 Are Mixed Up And Then A Ticket Is Drawn At Random. What Is The Probability That The Ticket Drawn Has A Number Which Is A Multiple Of three Or five?

Answer :

Here, S = 1, 2, three, 4, ...., 19, 20.

Let E = occasion of getting a more than one of 3 or 5 = three, 6 , nine, 12, 15, 18, 5, 10, 20.

 P(E) =n(E)/n(S)=9/20

TCS HR Interview Questions
Question 6. How Many Four Digit Numbers Can Be Formed Using The Digits 1, 2, three, four, 5 (but With Repetition) That Are Divisible By 4? Can You Help Alok Find The Answer ?

Answer :

1= 5^four-1=125, n= no of digits

1 2

2 four

3 2

4 4

5 2

The first  digits inside the region may be stuffed in five x five methods.

So there are absolutely 25 x five = 125 methods

Question 7. The Age Of The Two Friends Were In The Ration Of 6:5.If The Sum Of Their Ages Is sixty six.Then After How Many Years Their Ratio Will Become 7:6 ?

Answer :

Let the age of two pals be 6x and 5x

Sum of their a while 66 => 6x + 5x = 66 => 11x = sixty six => x=6

The ages might be 36 and 30

 (36+ok)/(30+k) = 7/6 => 36 x 6 + 6k = 210 + 7k

216 + 6k = 210 + 7k => 6 = okay

After 6 years their a long time can be in the ratio 7:6

Wipro Aptitude Interview Questions
Question eight. The Age Of The Two Friends Were In The Ratio Of 2:3.If The Sum Of Their Ages Is fifty five.Then After How Many Years Their Ratio Will Become 4:5 ?

Answer :

Let the age be the pals be 2x and 3x. Sum of their ages = 55

2x + 3x = fifty five => 5x=fifty five => x=eleven

Their ages are 22 and 33

After k years each of them can be 22+k and 33+k years old

Ratio in their age at that time will me 4:five

(22+ok)/(33+ok)=four/five 

five(22+k)=four(33+4) => a hundred and ten + 5k = 132+4k

K=132-a hundred and ten = 22

Question nine. A Person Is Manufacturing A House. He Bought 20 Ropes Of Wire Which Has A Density Of three hundred Kg/m3.The Height Of The Building To Be Constructed Is forty M. If The Capacity Of The Current Passed In The Wire Is 20 A And The Voltage Capacity Is 80 Volts.Then What Will Be The Opposing Force To The Current If The Wire Is Used ?

Answer :

Explanation:

through ohms law 

v = ir 

so r = v/i 

so r = 80/20 = four

VMware Aptitude Interview Questions
Question 10. A Horse Chases A Pony 2 Hours After The Pony Runs. Horse Takes 3 Hours To Reach The Pony. If The Average Speed Of The Horse Is 81 Kph.Then What Is The Average Speed Of The Pony?

Answer :

Horse covers = 81*three = 243 kms

So ponies speed = 243/(2+three) = 243/5 = forty eight.6

Question eleven. The Difference Between Two No Is 9 And The Product Of The Two Is 14.What Is The Square Of Their Sum?

Answer :

One wide variety be x and other y, then  x - y = nine

(x - y)2 = 81

x2 + y2 = 81 + 2xy = 109

(x+y)2 = x2 + y2 + 2xy = 109 + 28 = 137

So answer is 137

Value Labs Aptitude Interview Questions
Question 12. On Planet Korba, A Solar Blast Has Melted The Ice Caps On Its Equator. 9 Years After The Ice Melts, Tiny Planetoids Called Echina Start Growing On The Rocks. Echina Grows In The Form Of Circle, And The Relationship Between The Diameter Of This Circle And The Age Of Echina Is Given By The Formula D = four*v (t-nine) For T = nine Where D Represents The Diameter In Mm And T The Number Of Years Since The Solar Blast.Jagan Recorded The Radius Of Some Echina At A Particular Spot As 7mm. How Many Years Back Did The Solar Blast Occur ?

Answer :

d = 4*(t-nine)

Given r = 12 mm

So, d = 24 mm

So,

24 = 4t - 36

4t = 60

t = 15 years  

TCS Technical Interview Questions
Question thirteen. A Man Goes 50km North , Then Turned Left Walked 40km, Then Turned Right ? In Which Direction He Is?

Answer :

Left and right consecutive motion nullified the alternate in route. So, he is within the course he began with. 

Question 14. Ferrari S.P.A Is An Italian Sports Car Manufacturer Based In Maranello, Italy. Founded By Enzo Ferrari In 1928 As Scuderia Ferrari, The Company Sponsored Drivers And Manufactured Race Cars Before Moving Into Production Of Street-prison Vehicles In 1947 As Ferrari S.P.A. Throughout Its History, The Company Has Been Noted For Its Continued Participation In Racing, Especially In Formula One Where It Has Employed Great Success .Rohit Once Bought A Ferrari. It Could Go four Times As Fast As Mohan Old Mercedes. If The Speed Of Mohan's Mercedes Is 35 Km/hr And The Distance Traveled By The Ferrari Is 490 Km, Find The Total Time Taken For Rohit To Drive That Distance.

Answer :

Mohans velocity = 35 Km/hr

Rohit velocity = four x Mohan velocity = 4 x 35 = a hundred and forty Kmph

Time taken =Distance / Speed = 490 / one hundred forty = forty nine/14 = 7/2

Question 15. A Man Goes North 37 Km. Turns Left Goes 2 Km.Turns Right Goes 17 Km.Turns Right Goes 2 Km. Find Distance B/w Starting Ending Point.

Answer :

Distance among the starting and end factor is 37 + 17 = fifty four.

Yash Technologies Aptitude Interview Questions
Question sixteen. If There Are 30 Cans Out Of Them One Is Poisoned If A Person Tastes Very Little He Will Die Within 14 Hours So If There Are Mice To Test And 24 Hours To Test, How Many Mices Are Required To Find The Poisoned Can ?

Answer :

Have 6 mice for trying out,

Give each mice contents from 5 cans each

five 5 5 five five five

After 14 hours, one of the mice will die

So, we will recognize which five cans need to have the poison

Then , take the contents of those 5 cans and deliver to the final 5 mice every.

We will know in due time that may is poisoned

5C1+5C2+5C3+5C4 = five + 10 + 10 + 5 = 30

Question 17. If A And B Are Mixed In 3:5 Ratio And B And C Are Mixed In eight:five Ratio If The Final Mixture Is 35 Liters, Find The Amount Of B?

Answer :

a: b = 3:5

b: c =   8: 5

a:b:c  = 24 : forty : 25  and total is 24+forty+25 = 89 

(forty/89) x 35 = 15.73

SAP Aptitude Interview Questions
Question 18. It Is Dark In My Bedroom And I Want To Get Two Socks Of The Same Color From My Drawer, Which Contains 24 Red And 24 Blue Socks. How Many Socks Do I Have To Take From The Drawer To Get At Least Two Socks Of The Same Color ?

Answer :

The Answer is 25. First he will select 24 in that the most hazard is all are pink so if we take one extra socks, it has to be the other coloration. Hence, the solution is 24 + 1 = 25

TCS HR Interview Questions
Question 19. If The Valentines Day In 2005 Falls On Monday, Then On Which Day Will The Valentines Day Fall On 2010 ?

Answer :

FEB. 14, 2005   IS A  MONDAY

From Feb. 14, 2005 to Feb. 14 2006, there could be three hundred and sixty five days which means that one atypical day. 

So, FEB. 14, 2006   WILL BE A  TUESDAY

From Feb. 14, 2006 to Feb. 14 2007, there may be twelve months because of this one strange day. 

So, FEB. 14, 2007   WILL BE A  WEDNESDAY 

From Feb. 14, 2007 to Feb. 14 2008, there will be 365 days which means that one atypical day. 

So, FEB. 14, 2008   WILL BE A  THURSDAY 

From Feb. 14, 2008 to Feb. 14 2009, there may be three hundred and sixty six days

- add one more strange day for Feb.29. Total is two peculiar days. 

So FEB. 14, 2009    WILL BE A  SATURDAY

From Feb. 14, 2009 to Feb. 14 2010, there may be 12 months

one  atypical day . 

So FEB. 14, 2010    WILL BE A  SUNDAY

Question 20. An Athlete Decides To Run The Same Distance In 1/4th Less Time That She Usually Took. By How Much Percent Will She Have To Increase Her Average Speed ?

Answer :

(3/4)t=1

t=four/3=1+1/3

She will should increase her speed by 33.333% to run the same distance in 3/4s of the time

Oracle Aptitude Interview Questions
Question 21. In A Building There Are 5 Rooms. Each Having A Equal Area .The Length Of The Room Is 4m And Bread Ht Is five M.The Height Of The Rooms Are 2m.If 17 Bricks Are Needed To Make A Square Meter Then How Many Bricks Are Needed To Make The Floor Of A Particular Room?

Answer :

Dimensions = 4 x five x 2

TSA = 2 (4 x 5 + 5 x 2 + 4 x 2) = 2(20+10+eight)=2x38 =  76 sq.M

So bricks required = 76 x 17 = 1292

For five rooms 1292 x5 = 6460

Question 22. One Man Want To Build A Wall .The Length And Breadth Of The Wall Are 20 And 30 Respectively. He Need 35 Bricks For One Square Centimeter Then How Many Bricks He Need ?

Answer :

Area = 20 x 30 = 600 cm^2

Bricks = 600 x 35 = 21000

Question 23. In A Hotel We Can Order Two Types Of Varieties,however We Can Make 6 More Varieties In Home.One Can Choose The Four Varieties With Two From Hotel As Must.Discover How Many Ways One Can Order.

Answer :

No of approaches of selecting 2 from motel (6 picks) = 6C2

And from domestic (2 selections) = 2C2 

 2C2 x  6C2  = 1 x 15 = 15 ways

BHEL Aptitude Interview Questions
Question 24. If A Pipe Can Fill The Tank Within 6hrs. But Due To Leak It Takes 30 Min More.Now The Tank Is Full Then How Much Time Will It Take To Empty The Tank Throught The Leak.?

Answer :

Let the ability of the tank be 6 litre.

Then time to fill this tank is 6 hour ,while there may be no leakage .

So in 1 hour it fills 1 litre.

When leakage is there then it takes 6.5 hour to fill 6 litre 

so in 1 hour it fills 6/6.5 litre.

Time to vacate could be 1-(6/6.5) = 1/13 litre in 1 hour

time to vacate 1 litre could be 13 hour.

For 6 litre it'll be thirteen*6 =78 

Wipro Aptitude Interview Questions
Question 25. The Bacteria Has The Probability Of Split Into three And Probability To Die Is 1/3rd Of The Total Bacteria.Allow The Probability Is P. Some Of Them Survived With Probability 1/5.Then Which Among The Following Relation Is True ?

Answer :

Probability for the micro organism to be dying = 1/three

Hence chance of survival = 1/5

in the event that they continue to exist, they may be split into 3 more micro organism hence, p = (1/three) + (3* 1/5)

Question 26. There Is A Bacteria Which Has The Probability Of Die 1/3 Of Its Total Number Or It May Tripled. Find Out The Probability ?

Answer :

Probability of bacteria to die is 1/three

or its get tripled, for this reason the chance of getting tripled is (2/three)*p*p*p this is  (2/3)*p^3

so each the probability combined as P=1/3+(2/3*p^3)

Question 27. Amrith Told To Anand In Front Of A Photo That He Is The Son Of My Fathers Son.Find Who Is In The Picture If Amrith Have No Brothers And Sisters.

Answer :

Amriths son

VMware Aptitude Interview Questions
Question 28. One Grand Father Has 3 Grand Children Two Of The Age Difference Is three.Eldest Child Age Is 3 Times The Youngest Childs Age And The Eldest Child Age Is Two Year More Than The Sum Of Other Two Children. Find What Is The Age Of The Elders Child ?

Answer :

Let the age of eldest child is E , that of elder toddler is M and that of youngest toddler is Y, then in step with the given conditions

E = 3Y  (1) and  E = 2 + M + Y  (2)

Third condition is extremely complicated, in line with this condition  of the age difference is 3 so three cases will stand up 

1) E - M = three, ......(3)

2) M - Y = three, ......(four)

three) E - Y = 3, ......(five)

if we take first of the 3 situations then on solving (1), (2) and (three) we will get E = 3, M = 0, Y = 1 which is incorrect now on fixing (1), (2) and (4) we can get E = 15, M = eight, Y = five

similarity on fixing (1), (2) and (five) we can get E = four.Five, M = 1, Y = 1.Five

best E = 15, M = 8, Y = 5 is accurate so age of elder toddler is eight years.