The arithmetic mean of a group of 75 observations was calculated as 27. It was later found that one observation was wrongly read as 43 instead of the correct value 53. Obtain the correct arithmetic mean of the data.
Difference=53-43=10 should be increase
New average=27+$\dfrac{10}{75}$
= 27.13
|
A sum of money triples itself at 8% per annum over certain time. The number of years is equal to |
Answer | ||||||||
|
Match the following :
|
Answer | ||||||||
|
Before E.V. Ramaswamy Vaikom Satyagraha was first started by three leaders. They were |
Answer | ||||||||
|
Who was called "The Father of Modern India"? |
Answer | ||||||||
|
Tambapanni is the old name of |
Answer | ||||||||
|
Name the journal which declared "Swami Vivekanand the greatest figure in the Parliament". |
Answer | ||||||||
|
Cultivable lands which has not been ploughed for between one and five years are called as |
Answer | ||||||||
|
Tidal forests of Ganga-Brahmaputra delta, mainly consists of |
Answer | ||||||||
|
which is wrongly matched? |
Answer | ||||||||
|
_____ marked the beginning of census taking in India. |
Answer |