1.

A wooden box (open at the top) of thickness 0.5 cm, length 21 cm, width 11 cm and height 6 cm is painted on the inside. The expenses of painting are 70. What is the rate of painting per square centimetre ?

A. 0.7 per cm
B. 0.5 per cm
C. 0.1 per cm
D. 0.2 per cm
Answer» D. 0.2 per cm


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