The number of paving stones, each measuring 10 dm by 9 dm are required to pave a rectangular veranda 60 metres by 6 metres is
(A) 360
(B) 400
(C) 350
(D) 300
The number of paving stones, each measuring 10 dm by 9 dm are required to pave a rectangular veranda 60 metres by 6 metres is
(A) 360
(B) 400
(C) 350
(D) 300