গাণিতিক যুক্তি
মোট ১৯৫৮২ টি প্রশ্ন · উত্তর ও ব্যাখ্যাসহ · বিনামূল্যে
১৮৮৮১–১৮৯০০ দেখানো হচ্ছে, মোট ১৯৫৮২ টির মধ্যে
- A man’s speed with the current is 15 km/hr and the speed of the current is 2.5 km/hr. The man’s speed against the current is - MCQ
- A man decided to cover a distance of 6 km in 84 minutes. He decided to cover two-thirds of the distance at 4 km/hr and the remaining at some different speed. Find the speed after the two third distance has been covered - MCQ
- While covering a distance of 24 km, a man noticed that after walking for 1 hour and 40 minutes, the distance covered by him was 5/7 of the remaining distance. What was his speed in meters per second? MCQ
- A man wishes to cross a river perpendicularly. In still water, it takes 4 minutes to cross the river, but in the flowing river, it takes 5 minutes. If the river is 100 meters wide, the velocity of the flowing water of the river is - MCQ
- An UberX car charges Tk. 40 as base fare, Tk. 3.6 for each 0.2 of a kilometre and Tk. 180/hour as the travelling time charge. What will be the fare for a 6 kilometre trip if the travelling time is 110 minutes. MCQ
- Two boats on the opposite shores of a river start moving toward each other. When they pass each other they are 750 yards from one shoreline. They each continue to the opposite shore, immediately turn around and start back. When they meet again they are 250 yards from the other shoreline. Each boat maintains a constant speed throughout. How wide was the river? MCQ
- A train left Dhaka for Chittagong at 62 km per hour and at the same time another train left Chittagong for Dhaka at 48 km per hour on the same route. How far apart were the two trains one hour before they met? MCQ
- A father and a son started for a shop at the same time. In one minute, the son moved 20 steps forward and in the same time, the father moved 30 steps forward. In one step the son covered 1 ft. and the father covered 1.5 ft. If the son reached the store 10 minutes after his father, what was the distance of the store in ft? MCQ
- Two cars start towards each other from points 200 km apart. One car travels at 40 km/hr and the other travels at 35 km/hr. How far apart will the two cars be after four hours of continuous travelling? MCQ
- One card is drawn from a pack of 52 cards. What is the probability that the card drawn is either a red card or a king? MCQ
- A box contains 4 red, 5 green and 6 white balls. A ball is drawn at random from the box. What is the probability that the ball drawn is either red or green? MCQ
- An urn contains 6 red, 4 blue, 2 green and 3 yellow marbles. If two marbles are drawn at random from the urn, what is the probability that both are red? MCQ
- In a class, there are 15 boys and 10 girls. Three students are selected at random. The probability that the selected students are 2 boys and 1 girl, is - MCQ
- A bag contains 4 red, 5 yellow and 6 pink balls. Two balls are drawn at random. What is the probability that none of the balls drawn is yellow in colour? MCQ
- The ratio of the number of the red balls, to yellow balls, to green balls in an urn is 2:3:4. What is the probability that a ball chosen at random from the urn is a red ball? MCQ
- Tickets numbered 1 to 20 are mixed up and a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5? MCQ
- There are 4 women and 4 men sitting in a waiting room for a job interview. If two of the applicants are selected at random, what is the probability that both will be women? MCQ
- In a class, there are 12 boys and 16 girls. One of them is called out by an enrollment number, what is the probability that the one called is a girl? MCQ
- A box contains 6 bottles of variety 1 drink, 3 bottles of variety 2 drink, and 4 bottles of variety 3 drink. Three bottles of them are drawn at random, what is the probability that the three are not of the same variety? MCQ
- There are 12 boys and 8 girls in a tuition centre. If three of them scored first marks, then what is the probability that one of the three is a girl and the other two are boys? MCQ