the cost of painting the total surface area of a cube at the rate of 30paise per cm square is rupees 1036.80 .th e volume of the cube is ?
Answers
Answered by
8
Let , each sides of the cube is a cm
The total surface area is=(6×a×a) sq. cm
The total cost of painting= 1036.80 rs.=103680 ps.
The total surface area=(103680÷30) sq. cm
=3456 sq. cm.
6×a×a=3456
or, a^2 =576
or, a= 24
The volume of cube=a^3
=24^3
=13824 c.c.
The total surface area is=(6×a×a) sq. cm
The total cost of painting= 1036.80 rs.=103680 ps.
The total surface area=(103680÷30) sq. cm
=3456 sq. cm.
6×a×a=3456
or, a^2 =576
or, a= 24
The volume of cube=a^3
=24^3
=13824 c.c.
rithik2520055:
tq bro..
Similar questions