Question
What will it cost to paint four walls of a room of
dimensions 40 ft x25 ft x32 ft at Rs 7 per square foot if the room has two doors of 8 ft x5 ft and two windows of 3 ft x2 ft?Solution
Around the walls of the room, Area = 2x length x height + 2x breadth x height =2×40×32+2x25x32 =2560+1600 = 4160 ft² While this area has two doors and two windows which are on one side of the wall, the area taken on both sides is. Therefore, Total area of doors and windows = 2x (8×5) + 2 x (3x2) = 80+12 = 92 square feet Remaining area. = 4160-92 =4068 square feet The cost of painting all four walls of the room at the rate of Rs 7 per square foot = 4068 ×7 = Rs 28476.
Doubt pour over (A)/ me like hot fudge on (B)/ salted caramel ice cream. (C) / No error (D)
- Read each sentence to find out whether there is any grammatical error in it. The error, if any, will be in one part of the sentence. Mark the part with the...
this week since February 2018 / companies adding 18 oil rigs this week / U.S. energy firms added the most oil rigs / producers have been reducing spendi...
In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate optio...
Have we made headway in our attempts to save the world’s rain forests?
I was surprised (A) / when the hostess smiled (B) / as if she saw me before (C) / No Error (D)
Recently a number of (1)/ policemen was sentenced (2)/ to death for their complicity (3)/ in the murder (4)/ No error (5)
In the following questions, one part of the sentence may have an error. Find out which part of the sentence has an error and select the appropriate opti...
I have been knowing(1)/ him for the last(2)/ five years but now I don’t(3)/ know where he lives.(4)
Despite its widespread popularity (A)/among Florida's politicians, (B)/the bond cap statue was not (C)/entirely kosher from a constitutional point of vi...
