Question
PSLE
A group of students stood in three rows. The 1st row had 5i students. The 2nd row had 6i more students than the 1st row. The 3rd row had 10 less students than the 2nd row.
  1. Find the number of students in the 3rd row in terms of i. Give your answer in the simplest form.
  2. There were 89 students in the 3rd row. Find the value of i.
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 5i students. The 2nd row had 6i more students than the 1st row. The 3rd row had 10 less students than the 2nd row.
  1. Find the number of students in the 3rd row in terms of i. Give your answer in the simplest form.
  2. There were 89 students in the 3rd row. Find the value of i.