Answer / renni

I got through in L&T last week conducted in Jaya Engg College, Chennai.

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The test took place in college on 1 April & it consisted of following topics:

Quantitative Aptitude 30 quesstions
Verbal 30 questions
Logical Reasoning 30 questions

There were 3 sets of papers & everything was professionally managed. I
remember only a very few questions.

Quantitative

* Profit & Loss
* Number Systems
* Linear Equations
* Permutations & Combinations
* Time speed distance
* Time & Work
* Mixtures & Allegations

All are really simple & basic problems. Concentrate more on fundamentals?.

Few questions are:

1. In a kilometer race between A and B, A beats B by 9 seconds or 36 meter.
Then what is the time taken by B to finish the race?

Sol: When A has just completed the race it means B is behind by 36mts or
completed 966mts. And when a has taken T seconds to complete the race B
needs another 9 secs to complete the race; that means B runs another 36mts
in 4sec so his speed is 36/9 = 4mts/sec

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So travels 1000mts or 1km in 1000/(36/9)=250secs(time=dist/speed)
So A completes race in 250-9sec=241secs .

2. If 4apples and 6oranges cost 13/- and 2apples & 4oranges cost 7/- find
cost of one apple and one orange?

Sol: subtract 2nd eqn from 1st then we have 2a-2o=6 =>1apple and 1orange
cost 3/.

3. If a person travels for P km in t hrs and then increases his speed by x
km/hr find his new speed?

a) (p/t)+x b) pt+x c)p/x+t d)pt/x

ans:a

4,5,6 questions based on statistics from a bar graph.

7. If a kite is at a height of 50mts from ground and the angle of
inclination from a point on ground is 60degree then find length of the kite
sting?

Sol: based on trigonometry heights and distances: sin60=height of
kite/length of string(altitude/hypotenuse)

ans:100/(root of 3).



8. If avg. of 6 nos. is 8 and later 2 new nos are added such that the avg
of the present 8 nos is 6 then what is the avg of newly added two nos?

Sol: avg=total sum of values/ no of objects or observation.


? 8 =total sum of values of 6 nos /6
? total sum of values of 6 nos=6*8=48
now when 2 new nos are added applying same formula 6= total sum of values
of 8 nos/8

? total sum of values of 8 nos=48 so the value has not changed which
means the sum of added 2 nos is zero so avg=zero/2=zero .

9. What % of 4/7 is 4/5?

Sol: {(4/5)/(4/7)}*100=

ans =140%


10. By what % should a person sell an article so as to gain a profit of 24%
even after giving a discount of 10 %?


Sol) the easiest way to solve such problems is by assuming the cost price
as 100rs

So to get a profit of 24% means to sell at 100+24=124/-
So suppose he sold it at 10% discount initially he sells at 90rs
so ther is a difference of 34/-.

11. One problem on Arithmetic progression.

12. One on mean.

13. Matrix addition?

14. Find the determinant of a 3*3 matrix?


15. A red light glows every 10sec, yellow every 15sec and red every 18sec.
find the number of times all three glow together from 8:00AM to 9:00AM
(including both times)?

Sol : LCM of 10,15,18 = 90

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So every 90 seconds all three glow together so in one hour there are 3600 secs

So 3600/90=40 times but answer is 41 because they glow at 0th second that
is at 8 Am since both times are included.

16. If a man travels at 30km/hr is behind a car by 40mtrs. In 20sec if he
leads the car by 20mts then what is speed of car?

17. If age of a person is x and his mothers age is 34. then after how many
years will the mothers age be twice of the son?

18. One more age problem.


Verbal test:


30 questions

Meanings 3 questions:

Faux Pas : means a blunder (spelled as fau pa)

Sanguine

Arranging sentences in order(3 or 4 questions)

Finding errors in a sentence(3 Qs)

Reading passage (5 questions ):

easy to score atleast 4 marks out of 5 by reading questions and coming to
passage to search answer also less time consuming. Something like a
chemistry related passage.

Also analogies

Reasoning

Based on venn diagram 3 questions

1) Which diagram best represents musician, violinist and instrumentalist?

2) polygon, quadrilateral and rhombus?


3)four questions on figure matrices?

3 questions based on giving 3 figures and then we are required to find the
4th figure which comes next in the logical sequence?

Next day HR was conducted & no technical was asked? She was very kind & I
was asked to talk about myself, academics, achievements extra curricular
stuff etc? Its a real professional environment and I wish more people to
get through.

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