In a class of 20 school desks. Cover length ports of 110 cm width of 50 cm how many it is necessary paints to paint covers of school desks if on 1 sq.m 100 g of paint are required? Short record

220

Piece school desks-20

cm Length-110

cm Width-50

1 of sq. m-100 gr

of Sk-co of paint -

1) 110 cm x 50 cm of =5500 sq. cm - (1 school desk)

2) 5500 sq. cm x 20 =110000 km of cm

of 1 sq.m =10000 apartment of cm

 3) 110000 apartment of cm: 10000 apartment of cm = 11 sq.m

4) 11 sq.m x 100 g = 1100

Answer's

: On school desks it is necessary for 1 kg 100 g of paint

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Answer add