Question
Which system of planting is most suitable for sloppy
lands in hilly areas?Solution
Contour planting involves planting crops along the contour lines of the land. It helps to slow down the flow of water and reduce soil erosion on slopes.
A bag contains 5 red bottles, 6 yellow bottles and 8 green bottles . 3 bottles are drawn randomly. What is the probability t...
A box contains only three colors of balls- red, green and blue. What is the minimum number of balls that should be picked from the box to ensure that at...
- Two playing cards are drawn one after another without putting the first one back. What is the probability that at least one of them is an Ace?
A letter is taken out at random from ‘ROORKEE’ and another is taken out from ‘BOOKKEEPER’. The probability that they are the same letter is
A box contains only three colors of balls- red, green and blue. What is the minimum number of balls that should be picked from the box to ensure that at...
A basket contains (x + 4) red apples, (x + 6) green apples, and (x + 8) yellow apples. The probability of drawing a yellow apple from the basket is (7/2...
A box contains 5 blue jellies, some red jelly and rest yellow jelly. The probability of picking a red ball at random is 3/10, while the probability of p...
A box contains 6 red, 5 green, and 4 blue balls. Two balls are drawn randomly. What is the probability that they are of different colors?
Odds in favour of A passing the exam is 1 : 3 and Odds against B passing the exam is 4 : 1. What is the probability that exactly one of them will pass t...
- Raman has three children and he truthfully says, "at least one of my children is a girl." What is the probability that all of his children are girls?
Relevant for Exams:
