Do these word problems. Show your working clearly in the space provided. 16. The table below shows how Maggie fared in her recent examinations. The average mark of her English and Mother Tongue examinations was 4 more than that of her Maths and Science examinations. English 63 Mother Tongue 74 Maths ? Science 55 (a) Find the average mark of Maggie's Maths and Science examinations.