Question
On a rectangular wall of length 20 metres and height 15
metres, there is a window in the shape of triangle surmounted on a square. If the base of triangle and square overlap and length of each side of the square is 8 metres and length of altitude of the triangle is 5 metres, then excluding the window, what is the surface area of the wall?Solution
Surface area of the entire wall = length × height = 20 × 15 = 300 m2 Surface area of the window = sum of surface area of the square part + surface area of the triangular part => 82 + (1/2) × 8 × 5 => 64 + 20 = 84 m2 Required surface area = 300 – 84 = 216 m2
If 4 November 2021 is a Thursday, then what will be the day of the week on 13 May 2023?
Select the number from among the given options that can replace the question mark (?) in the following series .
189, 532, 316, ? , 377
...In a classroom, there are 5 rows, and 5 children Akshay, Vineet, Sujeet, Guddu and Mangal are seated one behind the other in 5 separate rows as follows:...
 Select the set in which the numbers are related in the same way as are the numbers of the following set.
(7, 9, 48)
(6, 8, 42)
(N...
If 11 December 2009 is a Friday, then what will be the day of the week on 18 December 2014?
In the following question below are given some statements followed by some conclusions based on those statements. Taking the given statements to be true...
By interchanging which two signs and two numbers (not digits) the equation will be correct?
8 – 4 × 9 + 6 ÷ 3 = 29
Select the Venn diagram that best represents the relationship between the following classes.
Actors, Comedians, Politicians
Who likes history?
Select the option that is related to the fifth letter-cluster in the same way as the second letter-cluster is related to the first letter-cluster and th...
