Question:
In 1 minute, Machine A can pack 3 boxes of biscuits while Machine B can pack 4 boxes of biscuits. Both machines started packing at 12.50 p.m. At what time will both machines pack 105 boxes of biscuits in total? Leave your answer in 24-hour clock.
Solution:
![P6 / ACS (Junior) / 2021 / SA2 Prelims / Paper 1 – Q09 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/05/P6_SA2_2021_ACS_Junior_Paper1_Q09-Qns.jpg?resize=400%2C260&ssl=1)
![P6 / Methodist Girls / 2020 / SA2 Prelims / Paper 1 – Q08 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/01/P6_Methodist_Girls_2020_SA2_Paper1_Q08-Qns.jpg?resize=400%2C260&ssl=1)