Ratio and Proportion

1. Write the ratio of all the patterns here (Black to White)

Mary has 10 sweets. She intends to give Martin and James all of the sweets to them by the ratio of 3:2. Predict the number of sweets that James will get. Show your working. (5 marks)

Natasha has 5 fairytale storybooks and 10 adventure storybooks. She arranges all the books on a shelf with each fairytale book sits at the front of adventure books. Based on the above information, answer these questions:

David owns 4 action figures, 2 of them are red in colour while the other 2 are blue in colour. He gives 2 action figures of each colour to Marcus, his brother. What is the new ratio of blue action figure to red action figure that David owns now? Show your working. (5 Marks)

Observe these illustrations and answer the questions below:

(a) Write the ratios for the blue smileys to yellow smileys and for the yellow smileys to blue smileys. (2 Marks)

(b) Draw the pattern of the smileys based on each ratios you have written above. (3 Marks)

Kelly buys 8 pens consisting of 5 pink pens and 3 black pens. At home, she gives some of the pink pens to Nancy, her sister. Eventually her new ratio of pink pen to black pen becomes 2:3. How many pink pens does Nancy get? Show your working. (5 Marks)