Question
PSLE
Mr Heng asked some pupils to choose their favorite colour for a shirt. The results are shown in the graph.
  1. What is the ratio of the number of pupils who chose grey to the number who chose red to the number who chose black?
  2. Mr Chong ordered a total of 38 shirts in the three colours according to the same ratio in part (a). How many more black than grey shirts were ordered?
3 m
(a)

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(b)

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PSLE
Mr Heng asked some pupils to choose their favorite colour for a shirt. The results are shown in the graph.
  1. What is the ratio of the number of pupils who chose grey to the number who chose red to the number who chose black?
  2. Mr Chong ordered a total of 38 shirts in the three colours according to the same ratio in part (a). How many more black than grey shirts were ordered?