Question no 2 Hence.
3516 ctn'.
EXERCISE 18
I. A *luare room 4 m high contains 1296 cubic
metres of air. Find the length of the room.
Find the total surface area of a cubical
containing 343 cu cm.
3. A solid stack measuring 20 m by 15 m by
6 m contains 1200000 bricks each 25 cm
long and 6 cm thick. Find the width of æh
