Question
Presbyopia is a visual defect caused
by:Solution
Presbyopia occurs due to the weakening of the ciliary muscles and loss of elasticity of the lens, making it difficult to focus on near objects. It is common with aging. Information Booster:
- Corrected using bifocal lenses.
- It combines symptoms of both hypermetropia and difficulty in lens accommodation.
- Commonly affects individuals over 40 years old.
- Find the probability of selecting a face card from a deck of well shuffled cards.
Two fair dice are thrown. What is the probability that the sum is a prime number?
A bag contains 16 black and 18 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
...- ‘A’ and ‘B’ play a game in which a coin is tossed 4 times. ‘A’ wins if at least 3 heads appear. Find the probability that ‘A’ wins.
The probability of selecting a rotten egg randomly from a basket of 600 eggs is 0.14. What is the number of rotten eggs in the basket?
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 6 purple, 15 green and 9 red balls. Two balls are randomly drawn from the bag, what is the probability that a green and a red ball are dr...
Bag A contains 4 blue and 5 green balls, while Bag B contains 6 blue and 10 red balls. If one ball is drawn from bag 'A' and bag 'B', respectively, at r...
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...
There are three 50 paise coins, nine Rs. 1 coins, and fifteen Rs. 2 coins in a container. One coin was lost. Find the probability that it is not a 50 pa...
Relevant for Exams:
