$\text{l.c.m.} (36, 94) = \dots$

State whether the following rational number has a terminating decimal expansion or not. If it has a terminating decimal expansion,find it: $\frac{64}{455}$

Prove that any positive odd integer is of the form $6m+1$ or $6m+3$ or $6m+5$,where $m \in N \cup \{0\}$.

$A$ rational number in its decimal expansion is $327.7081$. What can you say about the prime factors of $q$,when this number is expressed in the form $\frac{p}{q}$? Give reasons.

The numbers $525$ and $3000$ are both divisible by $3, 5, 15, 25,$ and $75$. What is $HCF(525, 3000)$? Justify your answer.

The pair .......... is a like surds.