L&T Infotech, a subsidiary of L&T, could be a international IT services and solutions supplier company primarily based in city, India. L&T Infotech is stratified #8 in Bharat IT firms in 2011-2012. the corporate has thirty-nine registered offices in twenty two countries.
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Chief info Officer (Leading European Speciality Oil Company)
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1. in a very km race between A and B, A beats B by nine seconds or thirty six meter. Then what
is the time taken by B to complete the race.
Sol: once A has simply completed the race it suggests that B is behind by 36mts
or completed 966mts. And once a has taken T seconds to complete
the race B wants another nine secs to complete the race; meaning B runs another 36mts in
4sec thus his speed is 36/9 = 4mts/sec
So travels 1000mts or 1km in 1000/(36/9)=250secs(time=dist/speed)
So A completes race in 250-9sec=241secs [refer rs aggarwal quant ability race and
gameof skills eg downside ]
2. If 4apples and 6oranges price 13/- and 2apples & 4oranges price 7/- realize price of 1
apple and one orange.
Sol: deduct 2d eqn from first then we’ve 2a-2o=6 =>1apple and 1orange price 3/-
3. If an individual travels for P kilometre in t hrs and so will increase his speed by x km/hr realize his
a) (p/t)+x b) pt+x c)p/x+t d)pt/x ans:a
4,5,6 questons supported statistics from a chart
7. If a kite is at a height of 50mts from ground and also the angle of inclination from some extent
on ground is 60degree then realize length of the kite sting. Sol: supported trig heights and distances: sin60=height of kite/length of
string(altitude/hypotenuse) ans:100/(root of 3)
8. If avg. of 6 nos. is eight and later two new nos. square measure additional such the avg of this eight
nos is six then what’s the avg of recently additional 2 nos.
Sol: avg=total total of values/ no of objects or observation
? eight =total total of values of six nos /6
? total total of values of six nos=6*8=48
now once two new nos square measure additional applying same formula 6= total total of values of eight nos/8
? total total of worths of eight nos=48 that the value has not modified which implies the total of
added two nos is zero thus avg=zero/2=zero (ans)
9. what’s going to of 4/7 is 4/5?
Sol: *100= ans =140%
10. By what’s going to ought to an individual sell a writing thus on gain a profit of pure gold even once
giving a reduction of ten the troubles
Sol) the simplest thanks to solve such issues is by presumptuous value} price as 100rs
thus to urge a profit of pure gold suggests that to sell at 100+24=124/-
thus suppose he sold-out it at 100 percent discount ab initio he sells at 90rs thus ther could be a distinction
11. One downside on Arithematic progression
12. One on mean
13. Matrix addition:
If one two three one one one zero one two
five seven nine = three four seven + two three two
two three four one one one one two ?
then what’s the worth of ?
14. realize the determinant of a 3*3 matrix? terribly simple
15. A red lightweight glows each 10sec, yellow each 15sec and red each 18sec. find the
number of times all 3 glow along from 8:00AM to 9:00AM (including each times)
Sol : multiple of ten,15,18 = 90
So each ninety seconds all 3 glow along thus in one hour there square measure 3600 secs
So 3600/90=40 times however answer is forty one as a result of they glow at 0th second that’s at eight Am
since each times square measure enclosed.