A man standing on the bank of a river observes that the angle of elevation of the top of a tree just on the opposite bank is 60°. The angle of elevation is 30° from a point at a distance y metres from the bank. What is the height of the tree?
y metres
2y metres
(√3y)/2 metres
y/2 metres
For election to the Lok Sabha, a nomination paper can be filed by
Miscellaneous · Easy
In a month if the seventh day is three days earlier than Saturday,then the nineteenth day of the month will be a
Miscellaneous · Easy
Which among the following events happened earliest ?
Miscellaneous · Easy
An 80-litre solution of alcohol and water has 75% alcohol. How much water (in litres) must be added to bring down the concentration of alcohol to 60%?
Miscellaneous · Easy