A new flag is to be designed with six vertical stripes using some or all of the colours yellow, green, blue and red. Then, the number of ways this can be done such that no two adjacent stripes have the same colour is

1.  12 × 81

2.  16 × 192

3.  20 × 125

4.  24 × 216

View Answer  
4
Correct Answer :

12 × 81


Explanation :
No Explanation available for this question

If the lengths of diagonals DF, AG and CE of the cube shown in the adjoining figure are equal to the three sides of a triangle, then the radius of the circle circumscribing that triangle will be

1.  equal to the side of the cube

2.  √3 times the side of the cube

3.  1/√3times the side of the cube

4.  impossible to find from the given information

View Answer  
4
Correct Answer :

equal to the side of the cube


Explanation :
No Explanation available for this question

A circle with radius 2 is placed against a right angle. Another smaller circle is also placed as shown in the adjoining figure. What is the radius of the smaller circle

1.  3-2 √2

2.  4 -2√2

3.  7-4√2

4.  6-4√2

View Answer  
4
Correct Answer :

6-4√2


Explanation :
No Explanation available for this question

 A student gets an aggregate of 60% marks in five subjects in the ratio 10 : 9 : 8 : 7 : 6. If the passing marks are 50% of the maximum marks and each subjects has the same maximum marks, in how many subjects did he pass the exam

1.  2

2.  3

3.  4

4.  5

View Answer  
4
Correct Answer :

4


Explanation :
No Explanation available for this question

In how many ways can the eight directors, the Vice-chairman and the Chairman of a firm be seated at a round-table, if the Chairman has to sit between the Vice-chairman and a director

1.  9! 2 

2.  2 ? 8!

3.  2 ? 7!

4.  None of these

View Answer  
4
Correct Answer :

2 ? 8!


Explanation :
No Explanation available for this question

If log2[log7(x2 - x + 37) ] = 1, then what could be the value of x

1.  3

2.  5

3.  4

4.  None of these

View Answer  
4
Correct Answer :

4


Explanation :
No Explanation available for this question

After a discount of 11.11%, a trader still makes a gain of 14.28%. At how many percent above the cost price does he mark his goods

1.  28.56% 

2.  35%

3.  22.22%

4.  None of these

View Answer  
4
Correct Answer :

28.56\% 


Explanation :
No Explanation available for this question

An old man has Rs. (1! + 2! + 3! + ...+ 50!), all of which he wants to divide equally (without fractions) among his n children. Then, n may be

1.  5

2.  7

3.  9

4.  11

View Answer  
4
Correct Answer :

9


Explanation :
No Explanation available for this question

A dealer buys dry fruit at Rs.100, Rs. 80 and Rs. 60 per kg. He mixes them in the ratio 3 : 4: 5 by weight, and sells them at a profit of 50%. At what price does he sell the dry fruit

1.  Rs. 80/kg 

2.  Rs. 100/kg

3.  Rs. 95/kg

4.  None of these

View Answer  
4
Correct Answer :

None of these


Explanation :
No Explanation available for this question

If the sum to infinity of the series 2+(2 – d)2/3+(2+d)4/9+(2+3d)8/27+…..∞ is 5/2,what is the value of d

1.  7/12

2.  -5/12

3.  -7/12

4.    5/12

View Answer  
4
Correct Answer :

-7/12


Explanation :
No Explanation available for this question
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