Maths Quiz 1

The number of elements of the Power set of a set containing ‘m’ elements is

• $2^{m+1}$

• $2^{m-1}$

• 2m

• $2^m$

Identify the Personality.

• Pythagorous

• Aryabhatta

• Shri Niwas Ramanujam

• Eular

The Probability that a Leap Year selected at random contains 53 Sundays is

• 3/7

• 2/7

• 1/7

• 4/7

Sum of infinite terms of an decreasing G.P with first term ‘a’ and common ratio ‘r’ is

• $\frac{a}{r}$

• $\frac{a}{1+r}$

• $\frac{r}{a}$

• $\frac{a}{1-r}$

What is the value of   $\left(16\right)^{\frac{1}{4}}$  

The Unit Digit of number

25 × 35 × 252 × 55× 45 is

• 0

• 5

• 6

• 2

1)What is the TRACE of matrix  

1    2     3
7    5     9
  2    6     10

• 50

• 5

• 16

• 10

Name the Central tendency which has the highest frequency.

Condition for a Quadratic Equation    $ax^2\ +bx\ +c=0$    to have equal Roots.

• Discriminant = 0

•  $b^2-4ac\ =0$  

• No Condition

• 1st & 2nd both

What is the Modulus of ‘z’

if z = 3 - 4i

• 5

• 25

• 3

• 4