Advertisements
Advertisements
प्रश्न
The probability that a non-leap year has 53 sundays, is
विकल्प
\[\frac{2}{7}\]
\[\frac{5}{7}\]
\[\frac{6}{7}\]
\[\frac{1}{7}\]
उत्तर
A non leap year
TO FIND: Probability that a non leap year has 53 Sundays.
Total number of days in non leap year is 365days
Hence number of weeks in a non leap year is `365/7=52` weeks and 1 day
In a non leap year we have 52 complete weeks and 1 day which can be any day of the week e.g. Sunday, Monday, Tuesday, Wednesday, Thursday, Friday, and Saturday To make 53 Sundays the additional day should be Sunday Hence total number of days is 7
Favorable day i.e. Sunday is 1
`"We know that PROBABILITY" = "Number of favourable event" /"Total number of event"`
Hence probability that a non leap year has 53 Sundays is `1/7`
APPEARS IN
संबंधित प्रश्न
Two different dice are tossed together. Find the probability :
1) of getting a doublet
2) of getting a sum 10, of the numbers on the two dice.
The probability of getting an even number, when a die is thrown once, is :
Joseph kept 26 cards in a cap, bearing one English alphabet on each card. One card is drawn at random. What is the probability that the card drawn is a vowel card ?
Two dice are rolled once. Find the probability of getting such numbers on the two dice, whose product is 12.
A group consists of 12 persons, of which 3 are extremely patient, other 6 are extremely honest and rest are extremely kind. A person form the group is selected at random. Assuming that each person is equally likely to be selected, find the probability of selecting a person who is extremely kind or honest. Which of the above you prefer more.
The king, queen and jack of clubs are removed form a deck of 52 playing cards and the remaining cards are shuffled. A card is drawn from the remaining cards. Find the probability of getting a card of a queen of diamond.
Cards numbered from 11 to 60 are kept in a box. If a card is drawn at random from the box, find the probability that the number on the drawn card is divisible by 5
In a bag there are 44 identical cards with figure of circle or square on them. There are 24 circles, of which 9 are blue and rest are green and 20 squares of which 11 are blue and rest are green. One card is drawn from the bag at random. Find the probability that it has the figure of green colour
What is the probability that a number selected at random from the numbers 3, 4, 5, ....9 is a multiple of 4?
If a digit is chosen at random from the digit 1, 2, 3, 4, 5, 6, 7, 8, 9, then the probability that it is odd, is
In a single throw of a die, the probability of getting a multiple of 3 is
A game of chance consists of spinning an arrow which is equally likely to come to rest pointing to one of the numbers 1, 2, 3,..., 12 as shown in the figure. What is the probability that it will point to a number which is a multiple of 5?
All red face cards are removed from a pack of playing cards. The remaining cards are well shuffled and then a card is drawn at random from them. Find the probability that the drawn card is a face card.
From the same place at 7 a.m. A started walking in the north at a speed of 4 km/hr. after 1 hour, B started cycling in the east at a speed of 8 km/hr. at what time will they be at a distance of 20 km apart from each other?
A bag contains 3 white, 5 black and 2 red balls, all of the same shape and size. A ball is drawn from the bag without looking into it, find the probability that the ball drawn is a black ball.
In a single throw of a die, find the probability that the number:
(i) will be an even number.
(ii) will be an odd number.
(iii) will not be an even number.
A coin is tossed once. Find the probability of getting a head
Playing cards now the following cards are added to the above cards:
What is the probability of Suhail winning now? Reshma wins if she picks up a 4. What is the probability of Reshma winning?
[Queen, King and Jack cards are called face cards.]
Sonia picks up a card from the given cards.
Calculate the probability of getting a Y card
Three coins are tossed simultaneously. What is the probability of getting at least one head?
