Luminoso technologies, inc. Interview Questions, Process, and Tips

Ques:- X can do a piece of work in 40 days; Y can do the same in 30 days. X started alone but left the work after 10 days, then Y worked at it for 10 days. Z finished the remaining work in 10 days. Z alone can do the whole work in?
Ques:- In a square , all the mid points are joined. the inner square is shaded. If the area of the square is A, what is the shaded area?
Recent Answer : Added by Admin On 2020-05-17 11:59:41:

ans: A/2
u get a diamond shape when u join those mid points
consider the 4 unshaded triangles
and u can form 2 square
when u analyse the squares u will get the answer

Ques:- consider expresion ‘ab’ . what happens when ‘a’ is divided by ‘c’ & ‘b’ is multiplied by ‘c’.
Recent Answer : Added by Admin On 2020-05-17 11:59:58:

value remains same

Ques:- A man sells a horse for Rs.800 and loses something, if he had sold it for Rs.980, his gain would have been double the former loss. Find the cost price of the horse?
Recent Answer : Added by Dev On 2022-10-21 19:49:12:

860

Ques:- one man driving a car in a lonely forest .. it was raining at that moment …suddenly one of the car tyre got punchured…and he is having stephiny in his car …he gets it and he tried to fix that stephiny…when he removes the bolts of punchred tire all are gone into mud…all bolts… fell into mud…and that bolts he never get…then, how can he reach safely to home… by driving his car..?
Recent Answer : Added by Admin On 2020-05-17 12:03:16:

he removed one bolt in each three wheels
and fixed the bolts in stephiny wheel

Ques:- Tell me about television?
Ques:- Regarding business profile
Ques:- If you won the lottery, would you still work?
Ques:- Assume you are hired, then how long would you expect to work for us?
Ques:- A train takes 9 sec to cross a pole. If the speed of the train is 48 kmph, then length of the train is
A. 80 m
B. 90 m
C. 120 m
D. 150 m
Recent Answer : Added by Ankit Bhikonde On 2022-09-21 17:57:43:

DISTANCE=TIME *SPEED
D=?
48*(5/18)=13.33m/s
D=9*13.333=120m

Ques:- Find out the wrong number in the series:
125, 106, 88, 76, 65, 58, 53
A. 65
B. 76
C. 88
D. 106
Recent Answer : Added by Abhay singh On 2022-05-17 08:56:47:

88

Ques:- Four couples sit around a circular table in a party. Every husband sits to the right of his wife. P, Q, R and S are husbands and T, U, V and W are wives. Q – U and R – V are two married couples. S does not sit next to V. T sits to the left of P, who sits opposite S. If P interchange his place with the person who sits opposite to R disregarding the condition that husband and wife sit together, then who sits to the right of U?
Ques:- The sides of a triangle are in the ratio 5: 12: 13 and its perimeter is 300 m, Evaluate the area of the triangle ?
Recent Answer : Added by Tushar Singh On 2022-03-09 16:33:29:

As it is a right angled triangle so we know the hypotenuse must be 13 and 5 & 13 are base and height (in any order).
Area of triangle = 0.5* base * height = 0.5 * 5 * 12 = 30

Ques:- A man engaged a servant on the condition that he would pay him Rs.710 and a uniform after a year service. He served only for 8 months and got Rs.460 and a uniform. Find the price of the uniform?
Recent Answer : Added by PRERNA SAHU On 2021-11-13 11:02:18:

ans=13.33
solution: (710/12)*8 – 460

Ques:- Let S be the set of prime numbers greater than or equal to 2 and less than 100. Multiply all the elements of S. With how many consecutive zeros will the product end?
A. 1
B. 4
C. 5
D. 10
Recent Answer : Added by Yash G On 2023-03-01 17:24:09:

To determine how many consecutive zeros the product of S will end with, we need to find the highest power of 10 that divides the product. This is equivalent to finding the highest power of 5 that divides the product, since the number of factors of 2 will always be greater than the number of factors of 5.

The primes in S are {2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97}.

There are 24 primes in S, so the product of S is:

2 x 3 x 5 x 7 x 11 x 13 x 17 x 19 x 23 x 29 x 31 x 37 x 41 x 43 x 47 x 53 x 59 x 61 x 67 x 71 x 73 x 79 x 83 x 89 x 97

We need to find the highest power of 5 that divides this product. To do this, we count the number of factors of 5 in the prime factorization of each number in S.

5 appears once: 5
5 appears once: 25
5 appears once: 35
5 appears once: 55
5 appears once: 65
5 appears once: 85
So, there are six factors of 5 in the product of S. However, we also need to consider the powers of 5 that arise from the factors 25, 35, 55, and 65.

25 = 5 x 5 appears once: 25
35 = 5 x 7 appears once: 35
55 = 5 x 11 appears once: 55
65 = 5 x 13 appears once: 65
Each of these numbers contributes an additional factor of 5 to the product of S. Therefore, there are 6 + 4 = 10 factors of 5 in the product of S.

Since each factor of 5 corresponds to a factor of 10, we know that the product of S will end with 10 zeros. Therefore, the product of S will end with 10 consecutive zeros

Ques:- A reduction of 20% in the price of salt enables a lady to obtain 10kgs more for Rs.100, find the original price per kg?
Ques:- How did you hear about this job opening?
Ques:- How many street lights are there in pune?
Ques:- Why haven’t you done your PG?
Ques:- Subtracting 30 from a number, the remainder is one fourth of the number. Find the number?
Recent Answer : Added by Jonáš On 2022-08-14 18:01:24:

40

x – 30 = 1/4 x || *4
4x – 120 = x || -x + 120
3x = 120 || /3
x = 40

Ques:- A and B started a partnership business investing some amount in the ratio of 3 : 5. C joined them after six months with an amount equal to that of B. In what proportion should the profit at the end of the one year be distributed among A, B and C?
A. 3 : 5 : 2
B. 3 : 5 : 5
C. 3 : 5 : 8
D. 6 : 10 : 5
Recent Answer : Added by yangqi On 2021-08-28 11:27:09:

D

Ques:- Let D be the set of all points in the real plane such that |x| + |y| <= 1,where |x| (respectively |y|) denotes the absolute value of x (respectively y).Prove that amongst every 5 points in D, there exist two points whose distancefrom one another is at mos
Ques:- Where u want to be in next 5 years
Ques:- The smallest prime number greater than 1000 is
A. 1001
B. 1003
C. 1009
D. 1007
Recent Answer : Added by Akinwunmi Gbemisola On 2022-05-17 09:08:46:

A

Ques:- What is a Crinoline?
A. Skirt
B. Shirt
C. Thong
D. Petticoat
Recent Answer : Added by martin On 2022-05-17 09:09:27:

petticoat

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:- Manick received Rs. 6000 as his share out of the total profit of Rs. 9000 which he and Raunaq earned at the end of one year. If Manick invested Rs. 20,000 for 6 months, whereas Raunaq invested his amount for the whole year, what was the amount invested by Raunaq?
A. Rs. 3000
B. Rs. 4000
C. Rs. 5000
D. Rs. 6000
Recent Answer : Added by MANASA CHINTHALA On 2022-03-09 16:33:20:

P1/P2 = C1*T1/ C2*T2
where P1 = Partner 1’s Profit.
C1 = Partner 1’s Capital.
T1 = Time period for which Partner 1 contributed his capital.
P2 = Partner 2’s Profit.
C2 = Partner 2’s Capital.
T2 = Time period for which Partner 2 contributed his capital
6000/3000= 20,000*6/x*12
x=5000

Ques:- Is detail important to you? Do you think details should be left to your assistant?
Ques:- Today is Tuesday. After 62 days it will be
A. Monday
B. Wednesday
C. Thursday
D. Sunday
Recent Answer : Added by Shankar On 2021-11-09 15:53:20:

Monday
7days for a week so 62÷7 remainder is 6 so
After Tuesday + 6days = monday

Ques:- Cost of an item is x. It’s value increases by p% and decreases by p% Now the new value is 1 rupee, what is the actual value ?
Recent Answer : Added by Admin On 2020-05-17 12:01:48:

original cost is 100^2 / (100^2 – p^2) Rs

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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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