Which Act is called as Black Act by the Indians?

Identify the statement which is wrong.

Consider the following Reason and Assertion and choose the correct answer from the codes
given below :
Reason (R) : The diet of the early Tamils was not very different from that of modern times.
Ghee played a conspicious part in the diet of all, it fetched a high price.
Assertion (A): Ghee was used freely both by vegetarian and non vegetarian Avur Mulankilar and Purattinai Nannaganar spoken of the use of ghee.

Choose the correct answer from the codes given below :
Assertion (A) : The Indian National Movement reached its crescendo in the non-co
operation movement in 1920-22. It was in this context that there occured a resurgence of working class activity in the years 1920-22. The working class created its own organisation to defend its class rights.
Reason (R): Lokamanya Tilak was one of the moving spirits in the formation of AITUC. AITUC was formed in 1920.

What is the standard deviation of the first n natural numbers?

In the series
6 4 1 2 2 8 7 4 2 1 5 3 8 6 2 1 7 1 4 1 3 2 8 6
How many pairs of alternate numbers have a difference of 2?

If + means X, X means -, $\div $ means + and - means $\div $ then what is the value of (175-25)$\div $(5 +20)x (3 +10)

In a geometric series, if the fourth term is $\dfrac{2}{3} $and seventh term is $\dfrac{16}{81}$ then what is the first term of the series?

Find the percentage increase in the area of a triangle if its each side is doubled.

The sequence follow a regular pattern. Find the correct letter for question nark, to complete the sequence.
C E I K O Q ?