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
In the following questions, a sentence has been given in Active/Passive voice. Out of the four alternatives suggested, select the one which best express...
What will be the interest on Rs 4000 at the rate of 30% per annum after 1 year when the interest is compounded every 4 months?
Pick the odd one out from the words given below:
What technology does the Nag Mk-2 missile utilize?
Which statement is correct about “ Food & Agriculture Organisation (FAO)’s report” ?
a.   United Nation released this report .
Internet banking is an example of
If A denote ÷, B denotes x, C denotes + and D denotes -, what is the value of the given expression?
32 B 40 A 8 C 10 D 12
Each question below has a blank, indicating that something has been omitted. Choose the word for the blank that best fits the meaning of the sentence a...
Sachin can complete a job in 15 days. Ankit alone can complete the same job in 10 days. Sachin works for 9 days and then the remaining job is completed ...
