Question
A cuboidal room has a length of 28 metres and a width of
16 metres. The volume of air in the room is 2240 cubic metres. What will be the cost of painting the side walls of the room if the painting rate is Rs. 32 per square metre?Solution
Volume of the air in the room = length X width X height = 28 X 16 X height = 2240 So, height of the room = 2240 ÷ (28 X 16) = 5 metres So, area of large side of the wall = length X height = 28 X 5 = 140 m2 Area of small side of the wall = 16 X 5 = 80 m2 So, total area of the wall = (140 X 2) + (80 X 2) = 440 m2 So, cost of painting the side walls of the room = 440 X 32 = Rs. 14,080
Select the most appropriate meaning of the given idiom.
Latin and Greek
- Choose the alternative which is closest to the opposite in meaning of the bold word in the sentence.
The scientist's ambiguous statement left the a... The Prime Minister condemned the heinous act of the terrorists.
What is the synonym for the word "avarice"?
Bellicose
GLOOMY
A) Monstrous B) Mirage C) Reality D) Potential
One who hides away on a ship to obtain a free passage
One vowed to a single or unmarried life.
Choose the word similar in meaning to the given word:
Ephemeral