The mean height of 15 sunflower plants is 120 cm. The mean height of 5 of these plants is 112 cm.
Work out the mean height of the other 10 plants.
Practise WJEC GCSE Maths Averages with exam-style questions for Foundation and Higher tier. 48 questions, matched to the WJEC GCSE Maths (3320QD) specification and written in Unit 1, Unit 2 and Unit 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.