8th Class
Mathematics
Mensuration
Question Bank
Mensuration
question_answer
A table cover \[75%\] is spread on a meeting table is .25 m of the cover hanging all around the table. The cost of polishing the table top at Rs.2.25 per square metre is:
A)Rs. 8.89
B)Rs. 11.81
C)Rs. 8.59
D)none of these
Correct Answer:
B
Solution :
Area of table top \[6\frac{2}{3}cm\] \[27\pi c{{m}^{3}}\]\[30\pi c{{m}^{3}}\] Cost of polishing on \[108\pi c{{m}^{2}}\]