During manure preparation, FYM should be enriched by addition of which fertilizer?
The FYM should be enriched by addition of super phosphate @ 30-40 kg per trench before application to fields.
Two schools, A and B participate in a Quiz competition. The probability of A’s winning is 3/7 and the probability of B’s winning is 3/5. Wha...
There are 4 red balls, 5 blue balls and 3 green balls in a jar. 2 balls are drawn at random. Find the probability that both balls are either green or red.
Find the probability that a number selected at random from first hundred number is a multiple of 3 or 5?
A bag contains 8 black and 10 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
...Three persons. A, B and C. are given the same puzzle to solve. The probability that A, B and C will solve the puzzle is. 3/5., 2/3., and 1/4respectively...
A box contains 5 red, 6 green and 3 yellow balls. 2 balls are drawn at random. What is the probability that they are not of the same colour?
A box contains 6 red, 4 blue, 2 green and 4 yellow pens. If four pens are picked at random, what is the probability that one is green, two are blue and ...
36 pens are there in a box where 12 are red pens, ‘p’ are blue pens and remaining are black pens. If a pen is picked, the probability of getting blu...
A bag contains 20 white and some black balls. If the probability of drawing a black ball from the bag is 1.3 times that of drawing a white ball, ...
A box contains 6 blue shirts, 7 yellow shirts and 9 pink shirts. In how many ways can 4 shirts be drawn from the box, if at least one blue shirt, one ye...
