In a ABC, DE || AC, where D and E are the points on sides AB and BC, respectively. If BD = 4 cm and AD = 2\(\sqrt{2}\) cm, then what is the ratio of the area of â–³BDE to the trapezium ADEC?
2 : (1 + \(\sqrt{2}\))
2 : (1 + 2\(\sqrt{2}\))
2 : (1 + 3\(\sqrt{2}\))
1 : (1 + 2\(\sqrt{2}\))
All 50 students of a class are standing in a straight row facing north. Rakesh is 17th from the right end, while Kamlesh is 22nd from the left end. How many students are standing between Rakesh and Kamlesh?
Which of the following interchanges of numbers would make the given equation correct?
5 × 15 ÷ 5 + 22 − 18 = 25