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Question : The lateral surface area of a frustum of a right circular cone, if the area of its base is 16$\pi$ cm2, the diameter of the circular upper surface is 4 cm and the slant height is 6 cm, will be:
Option 1: $30\pi$ cm2
Option 2: $48\pi$ cm2
Option 3: $36\pi$ cm2
Option 4: $60\pi$ cm2
Correct Answer: $36\pi$ cm2
Solution : Given: Upper diameter = 4 cm Let the radius of the top surface be $r$. $\therefore r = \frac{4}{2} = 2$ cm Given that, the area of the base $=16\pi$ $⇒\pi R^2 = 16\pi$, where $R$ is the radius of base $\therefore R
Question : Which among the following songs was composed by famous Indian musician Rahul Dev Burman?
Option 1: Yeh Dosti Hum Nahi Todenge
Option 2: Kesariya
Option 3: Kisi Ki Muskurahaton Pe Ho Nisar
Option 4: Ae Dil Hai Mushkil
Correct Answer: Yeh Dosti Hum Nahi Todenge
Solution : The correct answer is Yeh Dosti Hum Nahi Todenge.
The song "Yeh Dosti Hum Nahi Todenge" was composed by the famous Indian musician Rahul Dev Burman. The song is from the Bollywood movie "Sholay", released in 1975. R. D. Burman,
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