Question
PSLE
A puncher costs $4 more than a pencil. The total cost of 5 such punchers is $3c.
  1. Express the cost of 15 such punchers in terms of c.
  2. Express the cost of the pencil in terms of c.
2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

PSLE
A puncher costs $4 more than a pencil. The total cost of 5 such punchers is $3c.
  1. Express the cost of 15 such punchers in terms of c.
  2. Express the cost of the pencil in terms of c.