ONLINE MATHQUIZ SET A

Common difference of sequence 5,8,11,14,.... is

• 3

• -3

• 0

• 1

Fifth term of sequence  $a_n=2n+3$  

• -13

• -7

• 7

• 13

Which of the following is a prime number?

• 33

• 81

• 93

• 97

The polynomial of type  $ax^2+bx+c,a=0$  is of type 

• linear

• quadratic

• cubic

• biquadratic

In the principle of mathematical induction,which of the following steps is mandatory

• induction hypothesis

• inductive reference

• induction set assumption

• minimal set representation

In how many ways can the letters of the word "LEADER" be arranged ?

• 72

• 144

• 360

• 720

What is the value of  $100P_2$  ?

• 9801

• 12000

• 5600

• 9900

Which of the following sets are null sets?

• { }

• $\phi$

• both { } and $\phi$

• { 0 }

If the largest angle in a triangle is 70  degree, what is least possible value of the smallest angle of the triangle?

• 69  degree

• 1 degree

• 40 degree

• 39 degree

Find the number of triangles in an octagon.

• 326

• 120

• 56

• cannot be determined