Write the next five natural numbers after $321076$.

State the following statements as "True" or "False":

A rational number is said to be in its standard form if the numerator and denominator and denominator are coprime.

If the cost of  $\frac{5}{3}$ parts of a pizza is Rs.$300$, then what will be the cost of $\frac{3}{5}$ parts of the pizza?

Ali had $\mathrm{Rs}.320$. He spent $\frac{3}{4}$th of it to buy a watch. Of the remainder, he used $\frac{1}{8}$th to buy a pen. How much money is left?

A tree increases annually by one eighth of its height. What will be its height after $2$ years, if it stands today $64$ cm high?

Numbers are integers.

A standard rational number always has a common factor other than one for its numerator and denominator.

The smallest counting number is _____.

The sum of the squares of the two positive integers is $100$ and the difference of their squares is $28$. The sum of the numbers is.

(A) $12$
(B) $13$
(C) $14$
(D) $15$

A student was asked to divide a number by $3$. But, instead of dividing it, he multiplied it by $3$ and he got $29.7$. What was the correct answer?

A) $3.3$  

B) $9.3$

C) $9.8$

D) $9.9$

The $\frac{4}{5}$th of a certain number is $64$. Half of the number is