13. How long will 4 tonnes of coal last 5 boilers if each of the boilers requires 20kg of coal per day to heat the boilers? A. 27 days B. 44days C.16days D. 40 days E. 70 days 14. What is the perimeter of the shape below? A. 53cm B. 42cm C. 43cm D. 61cm E. 72cm The diagram below is a pie chart showing how Mr Kolawole spends his salary on monthly basis. Use the pie chart to answer question 15-17. 15. If Mr. Kolawole spends N180, 000 monthly on feeding, bow much is his monthly salary? A. N580,000 B. N480,000 C. N648 000 D. N465,000 E. N725,000 16. How much does Mr Kolawole save monthly? A. N112,000 B. N96,000 C.N104,000 D. N102,000 E. N108,000 17. What percentage of Mr. Kolawole's salary's spent on medical? A. 25.5% B. 14.5% C. 15% D. 12.5% E. 13.5% The Venn Diagram below represents the number of pupils that passed Mathematics, English Language and Current Affairs in a mock examination conducted in a primary school. Use the Venn Diagram to answer Question 18 to 20. 18. How many pupils passed only Mathematics? A. 20 B. 15 C. 16 D. 9 E. 5 19. How many pupils passed Current Affairs and English Language? A. 16 B. 33 C. 22 D. 38 E. 9