Question
PSLE
A group of pupils stood in three rows. The 1st row had 9w pupils. The 2nd row had 4w more pupils than the 1st row. The 3rd row had 10 less pupils than the 2nd row.
  1. Find the number of pupils in the 3rd row in terms of w. Give your answer in the simplest form.
  2. There were 120 pupils in the 3rd row. Find the value of w.
2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

PSLE
A group of pupils stood in three rows. The 1st row had 9w pupils. The 2nd row had 4w more pupils than the 1st row. The 3rd row had 10 less pupils than the 2nd row.
  1. Find the number of pupils in the 3rd row in terms of w. Give your answer in the simplest form.
  2. There were 120 pupils in the 3rd row. Find the value of w.