Question

The average cost of a book is $A.
(i) The total cost of 8 books is $36.
Find the value of A.
A = $….………………

(ii) One of the 8 books is removed.
The cost of this book is $6.60.
Find the new value of A.
A = $……..………….…

(iii) The total cost of x books is $y.
Write an expression for A in terms of x and y.
A = …………………..…

(iv) One of the x books is removed. The cost of this book is $7.
Write a new expression for A in terms of x and y
A = …………….…………
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Answer 1

Answer:

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Answer 2

Answer:

The average cost of a book is $A. (i) The total cost of 8 books is $36. Find the value of A. Answer(c)(i) A = .……………… (ii) One of the 8 ...

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IGCSE Maths Paper 3 Model Answers - [PDF Document]

14-Nov-2014 — The total of the marks for this paper is 104. ... average cost of a book is $A.