Roster Form

Q. Consider the number $4^n$, where $n$ is a natural number. Check whether there is any value of $n\in N$ for which $4^n$ ends with the digit zero.

1. Yes
2. No
3. Data insufficient
   
4. Ambiguous

Q. $A$ is $20$ years older than $B.5$ years ago, $A$ was $3$ times as old as $B$. Find their present ages.

1. $50$ years and $30$ years
2. $55$ years and $35$ years
3. $60$ years and $40$ years
4. $35$ years and $15$ years

Q.

The roster form of A = {Prime numbers between 10 and 20} is ___.

1. A = {11, 13, 15, 17, 19}

2. A = {11, 13, 17, 19}

3. A = {11, 13, 19}

4. A = {11, 13, 17}

Q. 19. Let a, b, c, p be rational numbers such that p230is not a perfect cube. If a +bp+cpthen prove that a-bco

Q.

Sir,

Tommorow is my math exam what points would you suggest me to score good marks in my SA1 exams.i will be highly grateful to you for your efforts.!

Q. Fill in the blanks:
{x|x is a multiple of 12}----- {x|x is a multiple of 6}

1. $\in$
2. $\subset$
3. $⊈$
4. $\notin$

Q.

Write the following in Roster form.

$C$=The set of natural numbers divisible by $5$ and less than $100$.

Q. find the positive integer whose cube exeeds its square by 4624