Question:
A pencil costs y cents and a file costs 40 cents more than a pencil.
(a) What is the cost of 2 identical files and 3 identical pencils in cents? Express your answer in terms of y in the simplest form.
(b) Shernice wants to buy 2 such files and 3 such pencils but is short of 30 cents. If the pencil costs 90 cents, how much money does Shernice have?
Solution:
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![P6 / Catholic High / 2021 / SA2 / Paper 1
– Q18 [1 mark]](https://i0.wp.com/sgprimaths.com/wp-content/uploads/2022/05/P6_SA2_2021_Catholic_High_Paper1_Q18-Qns.jpg?resize=400%2C244&ssl=1)