If two complementary angles are in the ratio of 2:3, find the ratio of square of smaller angle to square of greater angle.

If 15 persons can do a job in 30 days, then 30 persons with twice the efficiency can do the same job in how many days?

If (sinA + CosA)/(sin A - cos A) = 5/4, the value of (tan2A + 1)/(tan2A - 1) = ?

In NCLAGJ stands for PENCIL, then AMJMSP stands for

Who conferred the title of 'Gurudev' on Rabindranath Tagore?

Five women can do a work in 36 days. If the ratio between the capacity of a man and a woman is 3:1, then find how many days it will take 5 men to complete the same woek?

The mean of 14 observations is 11. One more observation is included and the new mean becomes 12. The 15th observation is

The mean of distribution is 11 and the standard deviation is 5. What is the value of the coefficient variation?