Zero tillage helps in controlling soil erosion by leaving the soil undisturbed, retaining crop residues on the surface to protect against wind and water erosion.
One summer peter visits 4 villages (A, B, C and D) in a random order. Find the probability that he visits (i) A before B (ii) A before B and B before C ...
A person has two vessels (A & B) that contain white and blue balls. In the Vessel 'A' there are 8 white and 8 blue balls and, in the Vessel, 'B' there a...
In a group of artists, there are 10 dancers and 8 singers. If four artists are to be selected at random, what is the probability that 2 dancers and 2 si...
The names of 7 students from section A, 5 students from section B and 3 students from section C were selected. The age of all the 15 students was differ...
A box contains 21 ribbons out of which [A] ribbons are white, and rest is green in colour. The probability of drawing a white ribbon and a green ribbon ...
The names of 8 students from section A, 9 students from section B and 10 students from section C were selected. The age of all the 27 students was diffe...
What is the probability that a number selected from 1,2,3.......................68,69,70, is perfect square or a perfect cube?
A bag contains 20 black and 22 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
...A bag contains 8 red flowers and 11 yellow flowers. One flower is drawn at random. What is the probability that the flower drawn is a yellow flower?
There are (m + 4) red roses, (m + 11) white roses and ‘m’ pink roses in a bag. If the probability of picking a pink rose is 5/16, then find the valu...
