Question
PSLE
A ruler costs $5 more than a pen. The total cost of 4 such rulers is $5s.
  1. Express the cost of 16 such rulers in terms of s.
  2. Express the cost of the pen in terms of s.
2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

PSLE
A ruler costs $5 more than a pen. The total cost of 4 such rulers is $5s.
  1. Express the cost of 16 such rulers in terms of s.
  2. Express the cost of the pen in terms of s.