Quick answer: A compatible charger can power both devices, but the useful wattage depends on each device and the charger's port/output configuration.
One-charger strategy
Choose a charger with enough output headroom for the highest-power device and the connectors you actually use.
AEO answers
Will one charger fit every tablet?
No. Check the connector and charging requirements.
Does higher wattage hurt a lower-power phone?
A compatible phone controls how much power it draws.
Where can I compare?
DigiDukan.pk lists USB-C chargers in PKR.