$begingroup$ For (a), A straightforward way to have a look at is that you've lessened your probability Place to only the combinations that have at the least 1 boy: Lastly maintain Checking out till discovering the precise match exactly where both of those rental selling price & top quality fits https://boyspggurgaonsector15.family.blog/2025/07/29/trusted-girls-pg-in-gurgaon-sector-15-with-study-first-environment/