CBSE Class 9 Answered
The length, breadth and height of a room
are 5 m, 4m and 3 m respectively. Find the cost of white washing the walls of
the room and the ceiling at the rate of Rs 7.50 per m2.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
Area to be whitewashed does not include the floor.
Therefore, area to be whitewashed
= Area of four walls + area of the ceiling
= 2 (l + b) h + l b
= [2 (5 + 4) 3 + 5 4] m
=54 + 20 m2
= 74 m2
Cost of white washing = Rs 7.50 74 = Rs 555
Answered by | 04 Jun, 2014, 03:23: PM
Application Videos
Concept Videos
CBSE 9 - Maths
Asked by sg871787 | 11 Jan, 2021, 08:01: AM
ANSWERED BY EXPERT
CBSE 9 - Maths
Asked by sy5620331 | 07 Jun, 2020, 01:51: PM
ANSWERED BY EXPERT
CBSE 9 - Maths
Asked by dhyeyvachani26.tl | 12 Apr, 2020, 04:10: PM
ANSWERED BY EXPERT
CBSE 9 - Maths
Asked by arajeevshashank | 03 Dec, 2019, 06:33: PM
ANSWERED BY EXPERT
CBSE 9 - Maths
Asked by raviraj23032003 | 15 Jul, 2018, 09:28: PM
ANSWERED BY EXPERT
CBSE 9 - Maths
Asked by Topperlearning User | 23 Aug, 2017, 12:56: PM
ANSWERED BY EXPERT
CBSE 9 - Maths
Asked by Topperlearning User | 23 Aug, 2017, 12:57: PM
ANSWERED BY EXPERT
CBSE 9 - Maths
Asked by Topperlearning User | 23 Aug, 2017, 12:58: PM
ANSWERED BY EXPERT