Two immersion heaters, A and B, are both connected to a 120-V supply. Heater A can raise

Question:

Two immersion heaters, A and B, are both connected to a 120-V supply. Heater A can raise the temperature of 1.0 L of water from 20.0°C to 90.0°C in 2.0 min, while heater B can raise the temperature of 5.0 L of water from 20.0°C to 90.0°C in 5.0 min. What is the ratio of the resistance of heater A to the resistance of heater B?