Lightstep Interview Questions, Process, and Tips

Ques:- A,B and C needs 8, 12 and 16 days respectively to finish a task. How many days will it take if A works for 2 days then B works on it until 25% of the job is left for C to do, and C completes the work?
Recent Answer : Added by Deven Sharma On 2023-05-31 18:36:37:

To solve this problem, we can break it down into steps:

Step 1: Determine the individual rates of work for A, B, and C.

If A needs 8 days to finish the task, then their work rate is 1/8 of the task per day.
If B needs 12 days to finish the task, then their work rate is 1/12 of the task per day.
If C needs 16 days to finish the task, then their work rate is 1/16 of the task per day.

Step 2: Calculate the combined work rate of A and B.

If A works for 2 days, their contribution will be 2 * (1/8) = 1/4 of the task completed.
If B works until 25% of the job is left for C, then they will complete 75% of the task.

Step 3: Calculate the time it takes for B to complete 75% of the task.

Since B’s work rate is 1/12 of the task per day, it will take B (75%)/(1/12) = 9 days to complete 75% of the task.

Step 4: Calculate the remaining work for C.

If B completes 75% of the task, then the remaining work for C is 100% – 75% = 25% of the task.

Step 5: Calculate the time it takes for C to complete the remaining work.

Since C’s work rate is 1/16 of the task per day, it will take C (25%)/(1/16) = 4 days to complete the remaining 25% of the task.

Step 6: Calculate the total time required.

A worked for 2 days, B worked for 9 days, and C worked for 4 days, totaling 2 + 9 + 4 = 15 days.

Therefore, it will take a total of 15 days for A to work for 2 days, B to work until 25% of the job is left, and C to complete the remaining work.

Ques:- In a certain year, the number of girls who graduated from City High School was twice the number of boys. If 3/4 of the girls and 5/6 of the boys went to college immediately after graduation, what fraction of the graduates that year went to college immediately after graduation?
Recent Answer : Added by APIA ZAINAB On 2022-01-19 15:38:44:

4/5

Ques:- Which of the folowing is not correct
a. (x+y)'=x'.y' b. (x'+y')'=x.y
c. (x'.y')'=x+y d. (x'+y')'=x'.y'
Recent Answer : Added by Mercy On 2022-04-02 07:00:57:

C

Ques:- A man could buy a certain number of notebooks for Rs.300. If each notebook cost is Rs.5 more, he could have bought 10 notebooks less for the same amount. Find the price of each notebook?
Recent Answer : Added by Admin On 2022-09-29 19:24:04:

According to the question:
⇒(x+5)(y−10)=300
⇒xy+5y−10x−50=xy
⇒5×300​−10x−50=0
⇒−150+x2+5x=0
⇒x2+15x−10x−150=0
⇒x(x+15)−10(x+15)=0
⇒x=10 or −15
Price cannot be negative
So, As x>0,x=10.

Ques:- If the first day of the year 1991 was Tuesday. What day of the week must have been on 1st January, 1998?
A. Tuesday
B. Wednesday
C. Thursday
D. Friday
Recent Answer : Added by Niroshani Jayakody On 2022-09-02 17:03:14:

2 Leap years
+2 to tuedsay
Thursday is the correct answer

Ques:- Present population of town is 35,000 having males and females. If The population of males is increased by 6% and if the population of females is increased by 4%, then after 1 year the population becomes 36,700. Find the number males and females ?
Ques:- The simple interest on a sum of money will be Rs.600 after 10 years. If the principal is trebled after 5 years what will be the total interest at the end of the tenth year?
Recent Answer : Added by dilshad On 2021-03-26 17:27:26:

1200

Ques:- There are four prime numbers written in ascending order of magnitude. The product of the first three is 385 and of the last three is 1001. Find the fourth number?
Recent Answer : Added by GURUKISHORE On 2021-09-18 16:12:09:

13

Ques:- we can use dm watter in sted of distulated watter
Ques:- Verbal, logical reasoning, numerical ability.
Ques:- distance D=rt where r & t are +ve and r is constant,as t increses then D_________
Recent Answer : Added by Admin On 2020-05-17 12:00:09:

D also increases
D & T are directly proportional

Ques:- The sum and the product of two numbers are 25 and 144 respectively, Find the difference of the number is?
Recent Answer : Added by kalum breach On 2022-04-02 07:00:47:

9 and 16

Ques:- ABOUT ME, QUALIFICATION EXPERIENCE.
Ques:- How will you prove to be an asset to this organization?
Ques:- What is the punchline of Corporation bank?
Recent Answer : Added by Sudeshna Roy On 2022-08-24 17:03:04:

Prosperity for all

Ques:- What is your professional goal?
Ques:- Why you want to change from hardware sector to fmcg sector
Ques:- X, Y, Z enter into a partnership investing Rs. 35,000, Rs. 45,000 and Rs. 55,000 respectively. The respective shares of X, Y, Z in annual profit of Rs. 40,500 are:
Recent Answer : Added by Supriya p On 2022-09-28 17:42:52:

X share is 10500
Y share is 13500
Z share is 16500

Ques:- What are your qualification?
Ques:- A man ate 100 bananas in five days, each day eating 6 more than the previous day. How many bananas did he eat on the first day?
Recent Answer : Added by Resha Bansal On 2022-05-17 08:55:07:

Let the person ate x banana on first day, so below is the equation for five days
X+x+6+x+12+x+18+x+24=100
So, he ate 8 banana first day

Ques:- A man can row at 5 kmph in still water. If the velocity of current is 1 kmph and it takes him 1 hour to row to a place and come back, Evaluate the distance of the place?
Ques:- Why do you want to work for this company?
Ques:- Which is your favorite quote?
Ques:- What is your Favourite color
Ques:- What is it when you have three you have three, when you have two you have two and when you have one there is none?
Ques:- a sum ‘s’ is devided into 4 parts.second person gets Rs 10 more than first.3rd person is Rs 10 more than second, 4th is 10 more than 3rd. how much amount do 1st person get?
Recent Answer : Added by Admin On 2020-05-17 11:59:57:

s=a+(a+10)+(a+10+10)+(a+10+10+10)
s=4a+60
a=(s-60)/4

Ques:- Speak for 2 minutes on some topic
Ques:- A man can row 6 kmph in still water. When the river is running at 1.2 kmph, it takes him 1 hour to row to a place and black. How far is the place?
Recent Answer : Added by Durgadevi A On 2022-09-18 08:59:16:

2.88

Ques:- The C.P of 15 books is equal to the S.P of 18 books. Find his gain% or loss%?
Recent Answer : Added by Pawan On 2021-07-18 09:42:52:

16.25

Ques:- A contractor agreeing to finish a work in 150 days, employed 75 men each working 8 hours daily. After 90 days, only 2/7 of the work was completed. Increasing the number of men by ________ each working now for 10 hours daily, the work can be completed in time.
Recent Answer : Added by Akshay On 2022-03-09 16:46:00:

225

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Devendra Bhardwaj With a decade of experience as a Job Hiring Expert, I am a results-driven professional dedicated to elevating recruitment strategies. My expertise lies in navigating the dynamic landscape of talent acquisition, employing innovative approaches to attract, assess, and secure top-tier candidates. I excel in optimizing hiring processes, leveraging cutting-edge technologies, and fostering collaborative relationships with stakeholders. A keen understanding of industry trends allows me to stay ahead, ensuring a competitive edge in securing the best talent for your organization. I am passionate about connecting the right people with the right opportunities and thrive in creating impactful, streamlined recruitment solutions.

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