CAT Questions

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Let the length of the stationary train Y be LY
Given that length of train X, LX = 300 m
Let the speed of Train X be V.
Since the train X crosses train Y and a pole in 60 seconds and 25 seconds respectively.
=> 300/V = 25 ---> ( 1 )
(300 + LY) / V = 60 ---> ( 2 )
From (1) V = 300/25 = 12 m/sec.
From (2) (300 + LY)/12 = 60
=> 300 + LY = 60 (12) = 720
=> LY = 720 - 300 = 420 m
Length of the stationary train = 420 m

Let the distance covered be D km. 

 D10+4+ D10-4 = 5

 D14+D6=5

 10D = 42 x 5 = 210

=> D = 21 km

The Abohar Wildlife Sanctuary is located in the Fazilka District of Punjab. The formation of sanctuary relates to a unique success story of wildlife conservation in which people of Bishnoi community united themselves for protecting the Black Buck which is regarded as a sacred animal by them. It is also the State Animal of Punjab. It is home to several varieties of flora and fauna viz. Albizia lebbeck, Acacia nilotica, Azadirachata indica, A. tortilis, Wild Boar, Blue Bull, Porcupines, Hare, Jackal, etc.

If heater D is used on the third day, heater B has to be used on the fourth day and A has to be used on the second day. But if A is used on second day, then either B or C has to be used on the first day. But if heater B is used on the first day, then according to the question, the requirement of having different heaters on the first day and fourth days would not be fulfilled. Hence the heater that would be used on the first day is C.

Number of positive integral solutions =  n-1Cr-1 = C220 = 190

Probability between z = 0 and z = 3.01 is given by

P(0<z<3.01) = P(z<3.01) - P(z<0)

Reading from the z-table, we have

P(z<0) = 0.5

P(z<3.01) = 0.9987

Hence, P(0<z<3.01) = 0.9987 - 0.5 = 0.4987.

Cost price of the article is given by

= 400x100/(20+20)

= Rs.1000

I ama PLATE.

People used me to eat their food but cannot eat me.