Question
PSLE
A group of students stood in three rows. The 1st row had 10z students. The 2nd row had 7z more students than the 1st row. The 3rd row had 5 less students than the 2nd row.
  1. Find the number of students in the 3rd row in terms of z. Give your answer in the simplest form.
  2. There were 46 students in the 3rd row. Find the value of z.
2 m
(a)

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(b)

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PSLE
A group of students stood in three rows. The 1st row had 10z students. The 2nd row had 7z more students than the 1st row. The 3rd row had 5 less students than the 2nd row.
  1. Find the number of students in the 3rd row in terms of z. Give your answer in the simplest form.
  2. There were 46 students in the 3rd row. Find the value of z.