Question
PSLE
Mr Ma asked some students to choose their favorite colour for a t-shirt. The results are shown in the graph.
  1. What is the ratio of the number of students who chose black to the number who chose yellow to the number who chose purple?
  2. Mr Tang ordered a total of 115 t-shirts in the three colours according to the same ratio in part (a). How many less yellow than black t-shirts were ordered?
3 m
(a)

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(b)

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PSLE
Mr Ma asked some students to choose their favorite colour for a t-shirt. The results are shown in the graph.
  1. What is the ratio of the number of students who chose black to the number who chose yellow to the number who chose purple?
  2. Mr Tang ordered a total of 115 t-shirts in the three colours according to the same ratio in part (a). How many less yellow than black t-shirts were ordered?