Roster Form

Q. The set of all natural numbers divisible by $5$ and less than $35$ can be written in set roster form as:

1. $\{5,10,15,20,25,30,35\}$
2. $\{5,10,15,20,25,30,35,40\}$
3. $\{5,10,15,20,25,30\}$
4. $\{5,15,25,35\}$

Q.

$A=\{x:x\in R,x^2=16\text{and}2x=6\}$ can be represented in the roster form as _________ .

1. $A=\left\{\right\}$

2. $A=\{14,3,4\}$

3. $A=\left\{3\right\}$

4. $A=\left\{4\right\}$

Q. The set of roots of the equations $3x^2-5x-2=0$ can be written in roster form as

1. $\left(-\frac{1}{3},2\right\}$
2. $\left(-2,\frac{1}{3}\right\}$
3. $\left(-2,-\frac{1}{3}\right\}$
4. $(-\frac{1}{3},2)$

Q. A set $X$ representing all the multiples of $3$ greater than $3$ can be written in the roster form as .

1. $X=\{6,9,12,15\}$
2. $X=\{6,9,12,15,...\}$
3. $X=\{3,6,9,12,15\}$

Q. The roster form of the set $\{x:x$ is a two-digit natural number such that sum of its digits is $9\}$

1. $\{09,18,27,36,45,54,63,72,81,90\}$
2. $(09,18,27,36,45,54,63,72,81,90)$
3. $[09,18,27,36,45,54,63,72,81,90]$
4. $\{18,27,36,45,54,63,72,81,90\}$

Q. The set of all natural numbers divisible by $5$ and less than $35$ can be written in set roster form as:

1. $\{5,10,15,20,25,30,35\}$
2. $\{5,10,15,20,25,30,35,40\}$
3. $\{5,10,15,20,25,30\}$
4. $\{5,15,25,35\}$

Q. A set $X$ is the set of vowels in the word $"CRYPT",$ then

1. $X=\left\{\right\}$
2. $X=\{A,E,I,O,U\}$
3. $X=\left\{\varphi \right\}$