৭ মিটার ব্যাসার্ধের একটি চাকা ১০ বার ঘুরে কতটুকু দূরত্ব অতিক্রম কর ?
A. ৭০ মিটার
B. ৪৪০ মিটার
C. ২২০ মিটার
D. ১৫৪০ মিটার
সঠিক উত্তরঃ
B.
৪৪০ মিটার
Explanation:
Related Questions (Any University/Year)
- ভারসাম্য রক্ষা করতে নিচের চিত্রের বামদিকে কত ওজন রাখতে হবে?
- Ajar contains 10 red marbles and 30 green ones .How many red marbles must be added to the jar so that 60% of the marbles will be red?
- Sharif ran a 2 mile race at an average speed of 8 miles per hour. If arif ran the same race at an average speed of 6 miles per hr. How many minutes longer than sharif did arif take to complete the race?
- Ehsan was preparing to make a tape from some of his favourite songs. He noticed that Hadi's song was 1 minute longer than Bonna's song. Duration of Niaj's song was 1 minute shorter than twice the duration of Bonna's song. If the total time for these songs is 12 minutes, how long is Niaj's song?
- A train 108 metre long is moving at a speed of \(50~km/hr\). It crosses a train 112 metre long coming from opposite direction in 6 seconds. What is the speed of the second train?
- During transportation, 5% merchandise was stolen and another 5% was damaged, At what profit (in percentage) should the goods be sold so as to make an overall profit of 20%
- A box contains 24 red socks and 43 green socks. How many green socks must be removed from the box so that 60% of the socks in the box will be green?
- x - {x - (x + 1)} = ?
- The price of sugar has increased by 32%. A family reduces its consumption so that the expenditure of sugar is up by 10% only. If the total consumption of sugar before the price rise was 10 kg per month, what is the current consumption of sugar per month (in kg)?
- Two people can make 2 bicycles in 2 hours. How many people are needed to make 12 bicycles in 6 hours?
- A trader purchased some pen for TK 120. If the price of each pen were Tk. 3 less, he would have got 2 more pens, How many pens did he buy?
- If 6 workers can complete 9 identical job in 3 days, how long will it take 4 workers to complete 10 such jobs ?
- If one-third of one-fourth a number is 15, then three-tenth of that number is-
- Each questions is followed by two statements. Decide whether the data in the statements are sufficient to answer the question. Select your answer according to whether: If x and y are integer, is \(y > 0\)? (1) \(x+1>0\) (2) \(xy > 0\)
- It takes 24 hours for 10 men to make 15 Christmas cakes. How many cakes can be made if 8 men work for 36 hours?
- By what percent was the price of a certain television set discounted for a sale?
- In a class of 78 students 41 are taking French, 22 are taking German. Of the students taking French or German, 9 are taking both courses. How many students are not enrolled in either course?
- A train takes 10 seconds to cross a pole and 20 seconds to cross a platform of length 200 m. What is the length of train?
- A monkey climbs a 12-meters-high slippery pillar. In his first minute, he climbs 2 meters, and in the next minute, he slips one meter down. In this way, how much time will he take to reach the top of the pillar? What is the correct