Question
PSLE
A group of girls stood in three rows. The 1st row had 10q girls. The 2nd row had 7q fewer girls than the 1st row. The 3rd row had 4 more girls than the 2nd row.
  1. Find the number of girls in the 3rd row in terms of q. Give your answer in the simplest form.
  2. There were 13 girls in the 3rd row. Find the value of q.
2 m
(a)

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(b)

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PSLE
A group of girls stood in three rows. The 1st row had 10q girls. The 2nd row had 7q fewer girls than the 1st row. The 3rd row had 4 more girls than the 2nd row.
  1. Find the number of girls in the 3rd row in terms of q. Give your answer in the simplest form.
  2. There were 13 girls in the 3rd row. Find the value of q.