Question:
A tank is filled with water from 2 taps. Tap A alone can fill the tank completely in 10 minutes. Tap B alone can fill the tank twice as fast as Tap A. Both taps are turned on at the same time.
(a) How long does it take for Tap B alone to fill the tank completely?
(b) How long does it take for both taps to fill the tank completely?
Solution:
![P6 / Raffles Girls / 2019 / SA2 / Paper 1 – Q20 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/07/P6_SA2_2019_Raffles_Paper1_Q20-Qns.jpg?resize=400%2C96&ssl=1)
