Truck P and Truck Q drive on the highway in the same…

Truck P and Truck Q drive on the highway in the same direction at respective rates of 70 kph and 77 kph. If Truck Q is 4 km behind Truck P, by how much does Truck P need to increase the speed to catch up with Truck P in 15 minutes?

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #45872