Exams

A boat cover row 12 km upstream in 4 hours and can cover the same distance downstream in 3 hours. What is the speed (in km/hr) of the boat in still water?

The standard deviation of the set {10, 11, 12, 9, 8} is

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

The earliest credible evidence of coffee-drinking or knowledge of the coffee tree (1)/ appears in the middle of the fifteenth century (2)/ as evident from the accounts of Ahmed al-Ghaffar in Yemen. (3)/ No error (4)

30 men working 5 hours a day can do a task in 16 days. In how many days will 40 men working 6 hours a day do the same task?

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

The written word is necessarily confined _________ the things of the understanding because only the understanding has written language; whereas art deals ___________ ideas of a different mental texture, which words can only vaguely ____________. However, there are a large number of people who, _____________ they cannot be said to have experienced in a full sense any works of art, have undoubtedly the impelling desire which a little direction may lead on to a fuller ____________. And it is to such that books on art are useful.

whereas art deals ___________ ideas of a different

2sin[(C+D)/2].cos[(C­-D)/2] is equal to

Who wrote the book -"The Algebra of Infinite Justice"?

Which of the following man has been honoured with ‘Uttam Jeevan Raksha Padak’ the second-highest Gallantry award for civilians?