Given:
Flour used to bake a cake =
kg
He use
kg less flour to bake some cookies.
To find:
The quantity of flour he used to bake the cookies.
Solution:
Mr. Alam use
kg kg of flour to bake and cake and use
kg less flour to bake some cookies.
Quantity of flour he used to bake the cookies is



Therefore, he use
kg flour to bake some cookies.