Set Max Posts with WP Pagination

<?php
$temp = $wp_query;
$wp_query= null;
$wp_query = new WP_Query();
$wp_query = new WP_Query( array(
'post_type' => 'posts',
'category' => 'your category'
'posts_per_page'=> 10,
'orderby'=> 'menu_order', //this comes in handy later!
'order'=> 'ASC',
'paged'=>$paged,
));?>

<?php while ($wp_query->have_posts()) : $wp_query->the_post();?>
<div class="entry"> <!--or whatever div you want your posts to go in -->
<?php $postNum = $post->menu_order + 1; if ($postNum < 31) : ?>
<!--back to the post-->
<?php else : wp_reset_query(); ?> <!--This is what stops the query after the 30th post!-->
<?php ; endif; ?>
</div>
<?php endwhile;?>