Question
If the curved surface area of a cylindrical drum is 660
cm² and its height is 10 cm, then find the diameter of the drum.Solution
ATQ,
Let the radius of the drum be 'r' cm.
Curved surface area of the cylinder = 2 × π × radius × height
ATQ,
2 × (22/7) × 10 × r = 660
So, r = (660 × 7) ÷ (2 × 22 × 10) = 10.5
Therefore, diameter of the drum = 2 × r = 2 × 10.5 = 21 cm
As per the Census 2011, what is the percentage of the population that is involved in agricultural & allied activities?
Who among the following had received the Nobel Prize 2022 for Chemistry?
In December 2021, the Supreme Court suspended OBC quotas for local body elections in which of the following states?
Who is the Chairman of the Regional Council?
Which company is being fined Rs. 1 Crore by the Competition Commission of India (CCI) for not reporting its acquisition of a stake in the company?
PM Janjati Adivasi Nyaya Maha Abhiyan (JANMAN) aims at uplifting ________ tribal communities identified as Particularly Vulnerable Tribal Groups (PVTGs)...
Balbir Singh Dosanjh who passed away in May 2020, was associated with which sports?
Consider the following statements:
1.The Tehri Dam, located on the Bhagirathi River in Uttarakhand, is the highest dam in India.
2.The Kak...
Who is the Union Minister of Tourism, as of March 2023?
Who among the following served as the first Chief Justice of India?
