I need help solving these three problems using a quadratic equation:

Two taps turned on together can fill a tank in 15 minutes. One tap alone takes 16 minutes longer than the other to fill the tank. Find the time it takes for each tap to fill the tank on its own.

Pauline would take 4 hours longer than Dora to paint their 2-bedroom apartment. Together they can get the job done in 4.8 hours. How long would Dora take to paint the apartment by herself?

I am thinking of three numbers that are squares of consecutive integers. Twice the smallest number minus three times the middle one plus four times the largest one comes to a total of 230. What are my three numbers?

Any help is appreciated greatly! thankks : )