Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
159 views
in Mensuration by (106k points)
closed by
The dimensions of a room are `20 ftxx 15 ftxx 12ft`. Find the cost of painting the walls of the room at rupees 20 per sq. ft.

1 Answer

0 votes
by (98.5k points)
selected by
 
Best answer
Correct Answer - ₹ 16800
Length of a room `=20ft`
Breadth of a room `=15ft`
Height of a room `=12ft`
Area of the 4 walls of the room =Lateral surface area of the room `=2(l+b)h`
`=2(20+15)12`
`=24(35)=840sq.ft`
The cost of painting the walls of the room at` ₹20` per sq.ft
`=840xx₹ 20 = ₹ 16800`

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...