NICL Administrative Officer (AO) Finance Exam 2013 Question paper

The circumference of the circle = Circumference of the rectangle
                                             = 2(18+26) = 88
Now, 2*(22/7)*r = 88
r = 14
Area of circle = (22/7)*14*14 = 616 cm^2
Therefore, the correct option is option C.
 

The integers between 3 and 8 which can be sides of triangle are 4,5,6,7.
Now, the sum of two sides of triangle cannot be greater than the third.
Hence, only 4,5 can be the sides of the triangle.
Therefore, the correct option is option A.
 

Let the number be x.
Now,  ((x/4) + (x/3) + (x/2)) - x = 12
13x/12 - x = 12
x = 144
Therefore, the correct option is option A.
 

Let the common multiple be x.
There are x girls and 3x boys.
Now, let girls score be N.
$$\frac{N*x+(A+1)*3x}{4x}$$ = A
N = 4A - 3(A+1)
   = A - 3
Hence, the average score of girls is A-3
 

Let the lengths of train be x and y.
Now their speed is (x/27) and (y/17)
Also, they cross each other in 23 seconds.
(x/27) + (y/17) = (x+y)/23
We get (4/621)x = (6/291)y
(x/27)*(4/23) = (102/291)*(y/17)
(x/27)/(y/17) = (102/291)*(23/4)
Ratio of speed = (391/194)
Option D is the correct answer.

Let the two numbers be x and y.
Now, x+y = 42
x*y = 437
x*(42-x) = 437
42x - x^2 = 437
x^2 - 42x +437 = 0
We get x = 23 0r x = 19
i.e y = 19 or y = 23
Hence, the two numbers are 23 and 19.
Their difference = 23 -19 = 4
Therefore, the correct option is option B.
 

We know that,
Profit = Selling Price - Cost Price
Now, let the marked price be x
As per given condition,
(0.95x - Cost Price) - (0.93x - Cost Price) = 15
0.02x = 15
x = 750
Therefore, the correct option is option C.

 

Let x be the production cost of the article.
Now, 1.1*1.15*1.25*x = 1265
x = (1265/1.1*1.15*1.25)
   = 800
Therefore, the production cost of article is 800
Therefore, option B is correct.

Now,
A:B = 1:3 = 15:45
B:C = 5:7 = 45:63
C:D = 9:7 = 63:49
Now, A:B:C:D = 15:45:63:49
Therefore, the correct option is option A.
 

Now, x-1 is a factor of $$4x^{2}+3x^{2}-4x+k$$ which means x=1 satisfies the equation.
Hence, $$4(1)^{2}+3(1)^{2}-4(1)+k$$ = 0
which gives 3+k = 0 i.e k = -3
Therefore, the correct option is option D.