Simultaneous EquationsCambridge IGCSE Maths: Subtopic test
10 questions, 26 marks
Cambridge IGCSE Maths
Simultaneous Equations
Total 26 marks
Name
Class
Date
- 1At a market stall, mango and papaya prices satisfy a pair of simultaneous equations.(a)At a market stall, 2 mangoes and 3 papayas cost 26 dirhams, so , and 1 mango and 1 papaya cost 10 dirhams, so . What is the value of ?[1 mark]
- A
- B
- C
- D
(b)Using the same equations, and , what is the value of ?[1 mark]- A
- B
- C
- D
(c)A customer buys 3 mangoes and 2 papayas. Using and , how much does this cost in dirhams?[1 mark]- A20
- B24
- C26
- D30
Total for question 1: 3 marks
- 2A cinema sells adult and child tickets, and two families' purchases give simultaneous equations for the prices.(a)A cinema sells adult tickets for dirhams and child tickets for dirhams. One family buys 2 adult and 3 child tickets for 76 dirhams, and another buys 3 adult and 1 child ticket for 72 dirhams. Construct a pair of simultaneous equations to represent this information.[2 marks](b)Solve the simultaneous equations and to find the price of an adult ticket, , and a child ticket, .[2 marks]
Total for question 2: 4 marks
- 3A café tracks combined orders of coffee and pastries using simultaneous equations.(a)A café sells coffees for dirhams and pastries for dirhams. The equations and describe two orders. Solve these simultaneous equations using the elimination method, showing full working.[3 marks](b)Using your solution to part (a), calculate the total cost of 2 coffees and 3 pastries.[3 marks]
Total for question 3: 6 marks
- 4A rectangular garden's perimeter and area lead to a pair of simultaneous equations, one linear and one non-linear.(a)A rectangular garden has a perimeter of 34 m, so where and are the side lengths. The garden's area is m², so . Form the pair of simultaneous equations (one linear, one non-linear) that represent this situation.[4 marks](b)Solve the simultaneous equations and to find both possible pairs of values for and .[4 marks](c)A different rectangular garden measures 9 m by 5 m. A path of constant width is built around the inside edge, reducing the remaining planting area to 21 m². Form and solve an equation for , showing full working, and state which solution is valid in context.[5 marks]
Total for question 4: 13 marks
End of questions