Grade 12 3.2 Lesego, a grade 12 learner from Motsatsing secondary school walks to the shops to buy data. The shop is 450 metres from her home. It takes her 6 minutes to walk from her home to the shop. 3.2.1 Calculate her average speed in metres per minute. Use the formula: Average speed Distance Time 3.2.2 The shop closes at 17:00. She must collect the money from her grandmother halfway the shop. She spends 12 minutes at her grandmother to collect money. If she leaves the house at 16:40, at what time will she reach the shop? ​