MATHEMATICS & LOGICAL ABILITY  

Illustrative questions for written test:

  1. Mathematical & Logical Ability:

(i) If 18Cr = 18Cr+4, find the value of rC5

(a) 21 (b) 56 (c) 42 (d) 7

(ii) In a triangle ABC, Cos A/2 is equal to

(a) Cos((B+C)/2) (b) - Sin ((B+C)/2)

(c) Sin((B+C)/2) (d) - Cos ((B+C)/2)

(iii) The value of a in log 3 = ¼ will be :

(a) 9 (b) 27 (c) 81 (d) 243

(iv) Binary equivalent of the decimal number 13 is

(a) 101 (b) 1011 (c) 1101 (d) None

(v) Which would be the next number in the series given below

1, 2, 6, 24, 120, ---------------------

(a) 720 (b) 240 (c) 480 (d) 1440

(vi) The value of 82/3 is equal to:

a) 2 b) 3 c) 4 d) 64

 "#00ff00">(vii) The Harmonic mean of 2,4,16, and 32 is approximately equal to

a) 44.54 (b) 4.64 (c) 4.74 (d) 5.80

(viii) A man can run round a circular path of radius 21m. in 44 seconds. The same person will run a distance of 3 km in.

a) 16 minutes 40 seconds b) 16 minutes 15 seconds

c) 15 minutes 20 seconds d) 17 minutes 30 seconds

(ix) If x* y*º (x+2)2 (y-2) then the value of 7x5 is E

a) 243 b) 205 c) 213 d) 175

  1. A  tyre runs 4.4 km in 1000 rounds. The radius of the type is approx.

a) 7 cm b) 70 cm c) 7 meter d) 80 meter

 

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