Rectangular tiles each of size 70 cm by 30 cm must be laid horizontally on a rectangular floor of size 110 cm by 130 cm, such that the tiles do not overlap. A tile can be placed in any orientation so long as its edges are parallel to the edges of the floor. No tile should overshoot any edge of the floor. The maximum number of tiles that can be accommodated on the floor is

1.  4

2.  5

3.  6

4.  7

View Answer  
4
Correct Answer :

6


Explanation :
No Explanation available for this question

In the figure, AB = BC = CD = DE = EF = FG = GA. Then DAE is approximately:                              

1.  150

2.  200

3.  300

4.  250

View Answer  
4
Correct Answer :

250


Explanation :
No Explanation available for this question

The length of the common chord of two circles of radii 15 cm and 20 cm, whose centres are 25 cm apart, is (in cm):

1.  24

2.  25

3.  15

4.  20

View Answer  
4
Correct Answer :

24


Explanation :
No Explanation available for this question

A shipping clerk has five boxes of different but unknown weights each weighing less than 100 kgs. The clerk weighs the boxes in pairs. The weights obtained are 110, 112, 113, 114, 115, 116, 117, 118, 120 and 121 kgs. What is the weight, in kgs, of the heaviest box

1.  60

2.  62

3.  64

4.  cannot be determined

View Answer  
4
Correct Answer :

62


Explanation :
No Explanation available for this question

In the following figure, the diameter of the circle is 3 cm. AB and MN are two diameters such that MN is perpendicular to AB. In addition, CG is perpendicular to AB such that AE : EB = 1 : 2, and DF is perpendicular to MN such that NL : LM = 1 : 2-The length of DH in cm is

1.  2√2-1

2.  (2√2-1)/2

3.  (3√2-1)/2

4.  (2√2-1)/3

View Answer  
4
Correct Answer :

(2√2-1)/2


Explanation :
No Explanation available for this question

Two full tanks, one shaped like a cylinder and the other like a cone, contain jet fuel. The cylindrical tank holds 500 litres more than the conical tank. After 200 litres of fuel has been pumped out from each tank the cylindrical tank contains twice the amount of fuel in the conical tank. How many litres of fuel did the cylindrical tank have when it was full

1.  700

2.  1000

3.  1100

4.  1200

View Answer  
4
Correct Answer :

1200


Explanation :
No Explanation available for this question

What is the value of the following expression [1/(22 - 1)] + [1/(42 - 1)] + [1/(62 - 1)] + .... + [1/(202 - 1)]

1.  9/19

2.  10/19

3.  10/21

4.  11/21

View Answer  
4
Correct Answer :

10/21


Explanation :
No Explanation available for this question

Consider the triangle ABC shown in the following figure where BC = 12 cm, DB = 9 cm, CD = 6 cm and BCD  = BAC What is the ratio of the perimeter of the triangle ADC to that of the triangle BDC

1.  7/9

2.  8/9

3.  6/9

4.  5/9

View Answer  
4
Correct Answer :

7/9


Explanation :
No Explanation available for this question

On a straight road XY, 100 metres long, five heavy stones are placed two metres apart beginning at the end X. A worker, starting at X, has to transport all the stones to Y, by carrying only one stone at a time. The minimum distance he has to travel (in metres) is :

1.  472

2.  422

3.  744

4.  860

View Answer  
4
Correct Answer :

860


Explanation :
No Explanation available for this question

Consider a sequence of seven consecutive integers. The average of the first five integers is n. The average of all the seven integers is:

1.  n

2.  n + 1

3.  k*n, where k is a function of n

4.  n + (2/7)

View Answer  
4
Correct Answer :

n + 1


Explanation :
No Explanation available for this question
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