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According to the figure above: tan 45° = 270/(a + b) ⇒ 1 = 270/(a + b) ⇒ a + b = 270 Also, tan 60° = 270/a ⇒ √ 3 = 270/a ⇒ a = 270/ √ 3 ⇒ a = 90√ 3 = 155.8 ∴ b = 270 - 155.8 = 114.2 ⇒ The boat covers a distance of 114.2 m in 2 minutes. ∴ Speed of the boat = (114.2 x 60)/(2 x 1000) km/h = 3.4 km/h
Which of the following is the largest freshwater lake in India?
Which of the following is the correct sequence of the mountain ranges of Himalayas when arranged from north to south?
If you travel through the shola forests of western Ghats, you are likely to see which of the following features?
1. Epiphytes like Lichens
Which is the largest city in the world by population ?
With reference to the Peninsular plateau, which of the statements given below is incorrect?
Which river is the longest river in India?
Debsa Pass is a mountain pass in which state?
Which river is known as the 'Sorrow of Bengal.
Which one of the following pairs of islands is separated from each other by the ‘Ten Degree Channel’?
Arrange the following left bank tributaries of Ganga from west to east:
1. Burhi Gandak
2. Gomti
3. Ramganga
4. Gha...
