Melissa spent 3/8 of her money on 3 pencils and 8 pens, and 4/5 of the remainder on 15 markers. Each pencil cost 2/3 as much as a pen. Each marker cost $0.20 more than a pencil. What is the cost of a pen?

Solution

40 units – 30 units ----- $3

10 units ----- $3

1 unit ----- $3 divided by 10 = $0.30

(Pen) 3 units ----- $0.30 x 3 = $0.90

Answer: $0.90

This blog is managed by Song Hock Chye, author of Improve Your Thinking Skills in Maths (P1-P3 series), which is published and distributed by EPH.

## Tuesday, September 22, 2009

### Raffles Girls Pri Sch 2007 PSLE Math Prelim Q47

Labels:
Fractions,
Mathematics

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