At a certain rate of simple interest, a principal becomes three times in 15 years. In how many years will the principal amount become nine times

1.  45 years

2.  30 years

3.  60 years

4.  75 years

5.  None of these

View Answer  
5
Correct Answer :

60 years


Explanation :
No Explanation available for this question

In how many ways can the letters of the word ABACUS be rearranged such that the vowels always appear together

1.  6!/2!

2.  3!*3!

3.  4!*3!/2!

4.   72

View Answer  
4
Correct Answer :

4!*3!/2!


Explanation :
No Explanation available for this question

There are 6 boxes numbered 1, 2,...6. Each box is to be filled up either with a red or a green ball in such a way that at least 1 box contains a green ball and the boxes containing green balls are consecutively numbered. The total number of ways in which this can be done is ____

1.  5

2.  21

3.  33

4.  60

5.  27

View Answer  
5
Correct Answer :

21


Explanation :
No Explanation available for this question

How many integers, greater than 999 but not greater than 4000, can be formed with the digits 0, 1, 2, 3 and 4, if repetition of digits is allowed

1.  499

2.  500

3.  375

4.  376

5.  501

View Answer  
5
Correct Answer :

376


Explanation :
No Explanation available for this question

In how many rearrangements of the word AMAZED, is the letter 'E' positioned in between the 2 'A's (Not necessarily flanked)

1.  24

2.  72

3.  120

4.  240

View Answer  
4
Correct Answer :

120


Explanation :
No Explanation available for this question

In a triangle ABC, the lengths of the sides AB and AC equal 17.5 cm and 9 cm respectively. Let D be a point on the line segment BC such that AD is perpendicular to BC. If AD = 3 cm, then what is the radius (in cm) of the circle circumscribing the triangle ABC

1.  17.05

2.  22.45

3.  27.85

4.  32.25

5.  26.25

View Answer  
5
Correct Answer :

26.25


Explanation :
No Explanation available for this question

How many scalene triangles exist whose sides a, b and c are natural numbers less than 8

1.  13

2.  14

3.  15

4.  16

View Answer  
4
Correct Answer :

13


Explanation :
No Explanation available for this question

From the following choices what is the equation of a line whose x intercept is half as that of the line 3x + 4y = 12 and y intercept is twice as that of the same line.

1.  3x + 8y = 24

2.  8x + 3y = 24

3.  16x + 3y = 24

4.  3x + y = 6

View Answer  
4
Correct Answer :

3x + y = 6


Explanation :
No Explanation available for this question

What is the equation of the line that is parallel to the line 3x + 7y = 10 and passes through the point (4, 8)

1.  7x – 3y = 46

2.  3x + 7y = 44

3.  9x + 21y – 184 = 0

4.  3x + 7y = 68

View Answer  
4
Correct Answer :

3x + 7y = 68


Explanation :
No Explanation available for this question

If A and B work together, they will complete a job in 7.5 days. However, if A works alone and completes half the job and then B takes over and completes the remaining half alone, they will be able to complete the job in 20 days. How long will B alone take to do the job if A is more efficient than B

1.  20 days

2.  40 days

3.  36 days

4.  24 days

5.  30 days

View Answer  
5
Correct Answer :

30 days


Explanation :
No Explanation available for this question
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