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TCS NQT Technical and Managerial Round Interview Questions

Practice Questions & Answers :: Mettl

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81*82*83*84*85*86*87*89. What should be in the unit place in this product?


A0

B1

C2

D3

 View Answer |  Submit Your Solution | Important Formulas | Topic: Simplification | Asked In HCL TechnologiesHireMee |

Answer: Option A

Explanation:

It should be zero in the unit place in this product.
85*82 will give zero in unit place.

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A cube is of size 5*5*5 .every side has green coloured. It is divided into
125 equal parts.
1) What is the no. of parts having only one side coloured
2) no. of parts having two sided coloured
3) having no side coloured


A54, 36, 27

B24, 35, 30

C14, 54, 24

D27, 34, 18

 View Answer |  Submit Your Solution | Important Formulas | Topic: Area | Asked In HCL TechnologiesHireMee |

Answer: Option A

Explanation:

One side colored = 6 * 9=54
Two side colored = 12*3=36
No side colored= 125-54(one side colored)-36(two side colored)-8(three side colored) =27

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In a garden man has to pick some flowers ans has to pass thrrough 3 doors. Each door has a guard. Man has to give half of the flowers he had, to the guard and in return guard returns the man one flower back. How many flower should man pick so that at the end he is left with same number of flowers he has picked?


A5 flowers

B4 flowers

C3 flowers

D2 flowers

 View Answer |  Submit Your Solution | Important Formulas | Topic: Area | Asked In HCL TechnologiesBroadcom LtdHireMee |

Answer: Option D

Explanation:

Suppose man picks up x flowers.
He gives half flowers he had to guard and guard in return gives 1 flower to man.
So, after 1st door remained flowers towards guard=(x/2)+1
i.e(x+2)/2
After 2nd door remained flowers towards guard=[(x+2)/4]+1
After 3rd door remained flowers towards guard=[(x+6)/8]+1
i.e.(x+14)/8
At the end he is left with same number of flowers he has picked.
So, (x+14)/8=x
8x-x=14
x=2
Hence he should pick up 2 flowers.

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What is the area of a circle having the same perimeter as that of a square whose area is 121.


A215

B308

C112

D342

 View Answer |  Submit Your Solution | Important Formulas | Topic: Area | Asked In HCL TechnologiesHireMee |

Answer: Option B

Explanation:

Side of the square=sqrt(12)=11
Perimeter of the square=44
2*π*r=44
r=44/2*π
area of the circle=π*r^2=308

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The average of six numbers is 30.If the average of first four is 25 and that of last three is 35, the fourth number is :


A25

B30

C35

D40

 View Answer |  Submit Your Solution | Important Formulas | Topic: Average | Asked In HCL TechnologiesHireMee |

Answer: Option A

Explanation:

sum of six nos is 180.
sum of first four is 100
sum of last three is 105.
sum of last two is 180-100=80.
fouth one is obtained by 105-80=25.

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Abel, Loyla and Sel are three channels , if 30% of the populatio watch Abel, and 5% of the people watch any two of the channel, and 5% of the people watch none of the channel then the number of people watching all the three channels are?


A50%

B60%

C70%

D80%

 View Answer |  Submit Your Solution | Important Formulas | Topic: Percentage | Asked In HCL TechnologiesHireMee |

Answer: Option D

Explanation:

Assume A,B,C are channels. P(A)=0.3 Intersection of any two channels = 0.05
People watch atleast one channel is = 1-0.05=0.95.
Now people watching all the three can be found by,
0.95=0.3-3*0.05+ x
x = 0.8.
Hence answer is 80%.

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An article whose initial cost is Rs 400 is subjected for discounts of 25%, 15%, and 40%. What is the amount the customer have to pay?


A123

B172

C153

D332

 View Answer |  Submit Your Solution | Important Formulas | Topic: Percentage | Asked In HCL TechnologiesHireMee |

Answer: Option C

Explanation:

0.75*0.85*.60*400=153

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Please find the solution.In an isosceles triangle,the sides are13cm,13cm,10cm which is inscribed inside a circle. Find the radius of the circle.


A6.40 cm

B6.00 cm

C7.04 cm

D6.14 cm

 View Answer |  Submit Your Solution | Important Formulas | Topic: Area | Asked In HCL TechnologiesHireMee |

Answer: Option C

Explanation:

sides are, a=13,b=13,c=10
s=(a+b+c)/2 =(13+13+10)/2=18
area of triangle= [s(s-a)(s-b)(s-c)]^1/2= [18(18-13)(18-13)(18-10)]^1/2 = (18*5*5*8)^1/2 =60 cm^2
R be the radius then it will be circumradius of triangle
R=(a*b*c)/(4*area of triangle)
R=(13*13*10)/(4*60)=7.04cm

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In a company ones salary increases 6/5 times in every year. After 4 year of joining average salary is 1342. Then what's the starting salary of the company?


A900

B1000

C1100

D1200

 View Answer |  Submit Your Solution | Important Formulas | Topic: Average | Asked In HCL TechnologiesBroadcom LtdHireMee |

Answer: Option B

Explanation:

Let x be initial salary.
After one year it becomes 6/5*x
4 months salary is
= x+6/5x +6/5*6/5x+ 6/5*6/5*6/5x + 6/5*6/5*6/5*6/5x =1342*4
By solving we get x =1000

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What is the binary rep of 0.6875?


A0.1101

B0.1010

C0.1101

D0.1011

 View Answer |  Submit Your Solution | Important Formulas | Topic: Problems on Numbers | Asked In HCL TechnologiesHireMee |

Answer: Option D

Explanation:

0.6875*2=1.375-1
0.375*2=0.75-0
0.75*2=1.50-1
0.50*2=1.0--1
Hence, 0.6875= .1011

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