# What is the va lue of m which satisfies 3m² - 21m + 30 < 0

1.  m < 2, or m > 5

2.  m > 2

3.  2 < m < 5

4.  m < 5

4

2 < m < 5

Explanation :
No Explanation available for this question

1.  100

2.  105

3.  125

4.  75

4

100

Explanation :
No Explanation available for this question

# 5 6 - 1 is divisible by

1.  13

2.  31

3.  5

4.  None of these

4

31

Explanation :
No Explanation available for this question

# The sides of a triangle are 5, 12 and 13 units respectively. A rectangle is  constructed which is equal in area to the triangle and has a width of 10 units. Then the perimeter of the rectangle is

1.  30

2.   26

3.  13

4.  None of these

4

26

Explanation :
No Explanation available for this question

# Which one of the following cannot be the ratio of angles in a right-angled triangle

1.  1: 2 : 3

2.  1 : 1 : 3

3.  1 : 3 : 6

4.  None of these

4

1 : 3 : 6

Explanation :
No Explanation available for this question

# Three bells chime at an interval of 18, 24 and 32 minutes respectively. At a certain n time they begin to chime together. What length of time will elapse before they chime together again

1.  2 hours 24 minutes

2.  4 hours 48 minutes

3.  1 hour 36 minutes

4.  5 hours

4

4 hours 48 minutes

Explanation :
No Explanation available for this question

# A, B, C and D are four towns, any three of which are non -collinear. The number of ways to construct three roads each joining a pair of towns so that the roads do not form a triangle is:

1.  7

2.  8

3.  9

4.  more than 9

4

more than 9

Explanation :
No Explanation available for this question

# For the product n(n + 1) (2n + 1), nN, which one of the following is necessarily false

1.  It is always even

2.  Divisible by 3.

3.  Always divisible by the sum of the square of first n natural numbers

4.  Never divisible by 237

4

Never divisible by 237

Explanation :
No Explanation available for this question

# Ram purchased a flat at Rs. 1 lakh and Prem purchased a plot of land worth Rs. 1.1 lakh. The respective annual rates at which the prices of the flat and the plot increased were 10% and 5%. After two years they exchanged their belongings and one paid the other the difference. Then:

1.  Ram paid Rs. 275 to Prem

2.  Ram paid Rs. 475 to Prem

3.  Ram paid Rs. 2750 to Prem

4.  Prem paid Rs. 475 to Ram

4

Ram paid Rs. 2750 to Prem

Explanation :
No Explanation available for this question

1.  1 or 3

2.  1 or 5

3.  3 or 5

4.  4 or 5

4