গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৮৬২১–১৮৬৪০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- Arrange the letters of the word ''DARKER'' so that the three vowels do not appear together. In how many ways can this be done? MCQ
- A television show was attended by 12 well known celebrities. Each one of them shook hands with each other once at the beginning of the show. Find the number of handshakes that took place on the show. MCQ
- There are 20 stops for the local trains running between Churchgate and Virar. A passenger travelling between any two stops needs to buy a ticket. How many types of tickets are required to be made to meet all the possibilities? MCQ
- 19 ladies are there in a group. Find the number of ways, in which they can be made to stand in 2 circles of 9 and 10 ladies? MCQ
- How many 4 letter words with or without meaning, can be formed out of the letters of the word, ‘LOGARITHMS’, if repetition of letters is not allowed ? MCQ
- Five students are to be arranged on five chairs for a photograph. Three of these are girls and the rest are boys. Find out the number of ways in which all three girls do not occupy consecutive seats. MCQ
- There are 2 yellow, 6 black, 4 grey and 8 red pebbles in a glass bowl. I pick one pebble randomly. What is the probability of me picking up a black or red pebble? MCQ
- Rakib studies with the help of flash cards. He has a set of 30 flash cards out of which 17 cards are white and rest are grey. 4 white and 5 grey cards are marked ENGLISH. Find the possibility of choosing a grey card or an ''ENGLISH'' Card randomly from the set. MCQ
- There are 6 orange, 2 pink, 4 yellow and 3 green towels in a carton. What is the probability of picking up 2 orange towels randomly. MCQ
- Akash travels with his two friends to Australia. In his bag, he has 6 black, 4 red, 2 white and 3 blue shirts. On Christmas eve all three of them chose to wear shirts from Akash's collection. Find the probability of 2 red shirts and 1 blue shirt being chosen randomly. MCQ
- Out of 6 black, 4 red, 2 white and 3 blue marbles in a box, find the probability of choosing at least 1 red marble when 4 marbles are randomly picked. MCQ
- Protik rolled a dice twice and he saw that the addition of two numbers that appeared on the top face was 8. Find the probability of getting a 4 on the top face of the dice in the first throw. MCQ
- There are 3 green, 4 orange and 5 white color bulbs in a bag. If a bulb is picked at random, what is the probability of having either a green or a white bulb? MCQ
- When 4 fair coins are tossed together what is the probability of getting at least 3 heads? MCQ
- 20 women take 20 minutes to roll 20 breads. How many breads can 400 women roll in 400 minutes? MCQ
- A ship was stocked with food to last for 40 days for 2500 sailors. However, some sailors could not board the ship and the food could last for 50 days. How many sailors could not board the ship? MCQ
- 3 men can build a stage in 18 days while 6 boys can also do it in 18 days. If 4 men and 4 boys work on the assignment together, how many days will they take to finish it? MCQ
- 75 employees have been able to finish only one-third of the project in 40 hours. The time committed by the management to complete the project was 90 hours. How many more employees should join the team to complete the project on time? MCQ
- A tank has water for 72 trees and can last for 54 days for them. If each tree is given 10% less water than 90 trees can get the water for how many days? MCQ
- 12 pumps of one type pump 300 litres of water when each is running for 18 hours per day. But a set of 16 pumps of other types pump 400 litres of water when each is running for 24 hours per day. How efficient are the former type of pumps than latter type? MCQ