Question
PSLE
A folder costs $5 more than a file. The total cost of 5 such folders is $4b.
  1. Express the cost of 10 such folders in terms of b.
  2. Express the cost of the file in terms of b.
2 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

PSLE
A folder costs $5 more than a file. The total cost of 5 such folders is $4b.
  1. Express the cost of 10 such folders in terms of b.
  2. Express the cost of the file in terms of b.