Q. 115.0( 3 Votes )
Find the cost of plastering the inner surface of a well at Rs. 9.50 per m2, if it is 21 m deep and diamwter of its top is 6 m.
Height of cylinder = 21 m
Diameter of cylinder = 6 m
Radius of cylinder =
Curved surface area of cylinder =
∴ Cost of plastering the inner surface at rate Rs.9.50 per m2 = 396×9.50 = Rs.3762
Rate this question :
How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
PREVIOUSThe height of a right circular cylinder is 10.5 cm. If three times the sum of the areas of its two circular faces is twice the area of the curved surface area. Find the radius of its base.NEXTA cylindrical vessel open at the top has diameter 20 cm and height 14 cm. Find the cost of tin-plating it on the inside at the rate of 50 paise per hundred square centimetre.
Area of Polygons41 mins
Quiz | Imp. Qs on Polyhedrons38 mins
Lets Roll Around a Circle51 mins
The History and Chemistry Behind a Matchstick!37 mins
Lets Make a Timetable and Crack Olympiad40 mins
Be a Master of Chemical Properties in 30 minutes !29 mins
Concentration makes you a Champ30 mins
Quiz on Be a Crackerjack to Extinguish Different Types of Fires30 mins
Indian Mythology on Characteristics of a Good Student29 mins
Discovery and Types of Microorganisms42 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
view all courses
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation