Contra Costa County - California Interview Questions Answers, HR Interview Questions, Contra Costa County - California Aptitude Test Questions, Contra Costa County - California Campus Placements Exam Questions

20 common asked question in every interview

Ques:- The G.C.D. of two whole numbers is 5 and their LCM is 60. If one of the number is 20, then the other number would be

A. 13

B. 15

C. 16

D. 25

Recent Answer : Added by Shravani Annameni On 2022-08-14 16:33:23:

G.c.d=num1 *num2/lcm
Num1=20
Gcd=5
Lcm=60
5=(20*num2)/60
Num2= 5*60/20
Num2=15

Ques:- How can you plant 11 tree in 6 row and each row contain 4 tree?

Ques:- Tell me something about ur school days?

Ques:- How long does a train 110 m long running at the speed of 72 km/hr takes to cross a bridge 132 m length?

Recent Answer : Added by AP On 2023-03-15 12:25:11:

Total distance to cover = 132 +110 = 242m
Speed = 72kn/hr = 20m/s
time = 242/20 = 12.1 sec.

Ques:- Why do you wish to join our company?

Ques:- ?Deep Fritz? is?

Ques:- Four Members A,B,C,D are playing a game .A person losing a game should double the amount of others .B,C,D are losing in order after three games .The amount after 3 games are A&B having 40,D is having 16&C 80. Each questions carry one mark:
a) who started with small amount of money?
b) who started with greatest amount of money?
c) what amount did B have?

Recent Answer : Added by Admin On 2020-05-17 12:02:11:

status after 3 games
A-40
B-40
c-80
d-16
status after 2 games
A-20
B-20
C-40
D-96
status after 1 game
A-10
B-10
C-108
D-48
status after 0 games
A-5
B-93
C-54
D-24
so answers are
a)A
b)B
c)93

Ques:- There are 3 persons Sudhir, Arvind, and Gauri. Sudhir lent cars to Arvind and Gauri as many as they had already. After some time Arvind gave as many cars to Sudhir and Gauri as many as they have. After sometime Gauri did the same thing. At the end of this transaction each one of them had 24. Find the cars each originally had.

Ques:- How many seconds will a 500 m long train take to cross a man walking with a speed of 3 km/hr in the direction of the moving train if the speed of the train is 63 km/hr?

Recent Answer : Added by Bhoomi Patel On 2021-08-19 17:24:21:

speed of the train respect to man
= (63 – 3) km/hr
= 60 km/hr
= 60 * 1000 / 3600 m/sec
= 50/3 m/sec

time
= distance/speed
= 500 * 3/ 50
= 30 sec

Ques:- How you will handle the staff if they neglect to work

Ques:- T, U, V are 3 friends digging groups in fields. If T & U can complete i groove in 4 days &, U & V can complete 1 groove in 3 days & V & T can complete in 2 days. Find how many days each takes to complete 1 groove individually.

Ques:- A building with height D shadows up to G. A Neighbour building with what height shadows C feet.

Recent Answer : Added by Admin On 2020-05-17 12:00:38:

(C*D)/G

Ques:- When an object like cube or sphere is seen along x,y,z,axes we get the same.Apart from these suggest another which has similar characteristics?

Recent Answer : Added by Admin On 2020-05-17 12:01:27:

Triangular Prism

Ques:- In a class of 65 students and 4 teachers, each student got sweets that are 20% of the total number of students and each teacher got sweets that are 40% of the total number of students. How many sweets are there?

A. 104

B. 845

C. 897

D. 949

Recent Answer : Added by narendra On 2022-09-18 09:02:47:

Ques:- Family background & about education

Ques:- What was the first polyester fiber invented in 1941 called?

A. Terylene

B. Poplin

C. Terry cot

D. Rubia

Recent Answer : Added by Sushmitha On 2020-12-09 15:07:33:

Ques:- Three pipes of same capacity can fill a tank in 8 hours. If there are only two pipes of same capacity, the tank can be filled in?

Recent Answer : Added by M.N On 2021-04-05 14:58:46:

3×8=24=2xt ===> t=12hours

Ques:- A+B+C+D=D+E+F+G=G+H+I=17 where each letter represent a number from 1 to 9. Find out what does letter D and Grepresent if letter A=4?

Recent Answer : Added by Eva On 2022-04-02 06:59:23:

D=5, G=1

Ques:- U r watching an inp. cricket match.Suddenly the tv goes blank. Write the steps u ll take to find the fault?

Ques:- Why we are supposed to believe you to work more than a year in our organisation

Ques:- Find the multiple of 11 in the following numbers.

A. 978626

B. 869756

C. 447355

D. 447355

Recent Answer : Added by Vikash Kumar Sinha On 2022-03-09 16:26:52:

A. 978626

Ques:- Are you interested in helping others?

Ques:- Personal introducing and family background

Ques:- What is the maximum number of half-pint bottles of cream that can be filled with a 4-gallon can of cream(2 pt.=1 qt. and 4 qt.=1 gal)

Recent Answer : Added by Ashish On 2021-09-18 16:12:08:

Ques:- 80% pass in english, 70%pass in maths , 10%fail in both , 144 pass in both . How many all appeared to the test?

Recent Answer : Added by Admin On 2020-05-17 12:01:09:

pass English =80%
fail=100-80=20%
pass Math = 70%
fail in Math=100-70=30%
fail in both=10%
total fail students= fail in Eng+fail in Math-common
= 20+30-10=40%
if 40% fail then 60% will pass
let total students=x
hence
60% 0f (total students)=144
60/100 of (x)= 144
x=(144×100)/60
X=240
total students=240

Ques:- What is your big achivment?

Ques:- What percentage of numbers from 1 to 70 have squares that end in the digit 1?

A. 1

B. 14

C. 20

D. 21

Recent Answer : Added by Admin On 2022-09-25 04:11:00:

C. 20

Ques:- Out of first 20 natural numbers, one number is selected at random. The probability that it is either an even number or a prime number is -.

Ques:- Find out the wrong number in the series:
3, 7, 15, 27, 63, 127, 255

A. 7

B. 27

C. 63

D. 127

Recent Answer : Added by Yogesh On 2022-03-09 16:46:03:

B. 27

( Number × 2 ) + 1
3 × 2 + 1 = 7
7 × 2 + 1 = 15
15 × 2 + 1 = 31 ( not 27 )
31 × 2 + 1 = 63
63 × 2 + 1 = 127
127 × 2 + 1 = 255

Ques:- A 4 digit no may consist of the digits 6,2,7,5 where none of the nos are repeated.Find the possible no of combinations divisible by 36?

Recent Answer : Added by Admin On 2020-05-17 12:02:15:

no combinations is there because a number divisible by 36
also divisible by its divisors anu.sum of 4 digits=20,whis
is not multiple of 3.so it is cannot divisible by 3

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