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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. 3 minutes

B. 4 minutes

C. 5 minutes

D. 7 minutes

E. none of these

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সঠিক উত্তরঃ C. 5 minutes

Explanation:

If a 60 ml of water contains 20% of chlorine, how much water must be added in order to create a 12.5% chlorine solution?
of the 400 students in a business school,30% were women and of these 1/5th became entrepreneurs.If the number of men who became entrepreneurs was twice the number of women entrepreneurs,how many men became entrepreneurs?
If the price of onion goes up by 25%, by how much should usage be reduced in order to keep the total expense for onion as before?
20% of 2 is equal to-
If x+y=4, y+z = 8 and z+x= 6, then 2y-z-0
Outside a square garden there is a path of 5 metres width around it, If the area of the path is 500 square metres, what is the area of the garden?
মাহি, রাহি ও রাজনের বর্তমান বয়সের সমষ্টি ১০২ বছর। ৪ বছর পূর্বে তাদের বয়সের অনুপাত ছিল ৪ঃ৫ঃ৬। মাহির বর্তমান বয়স কত?
Which of the following fractions is the smallest ?
How many spokes are there in a wheel of a car. If any two spokes from an angle of 15?
A shoe seller sold one pair of shoes for 20 taka. The buyer did not have change and gave the seller a 100 taka note. The seller took taka 100 change since he had none in his cash box from a neighbor businessman and returned the buyer required change plus the shoe he bought. Moments later after the client had left the seller found that he was given a fake note. What was the amount of loss for the seller?
A manufacturer prints books at a cost of Tk. x each for the first thousand copies printed. The second thousand copies printed cost Tk. 0.9x each. If it costs Tk.3,264 to print 1,400 copies of a book, then x is:
There are 12 men on basketball team , and in a game 5 of them play at any one time. If the game is 1 hour long and if each man plays exactly the same amount of time, how many minutes each man play?
A long rope has to be cut to make 23 small pieces. If it is double folded to start with, how many times does it need to be cut?
দুইটি ক্রমিক সংখ্যার বর্গের পার্থক্য ১৯। তার মধ্যে একটি সংখ্যার বর্গমূল ৩ হলে অন্যটি কত?
৮৮০-এর তিন-চতুর্থাংশের এক-দশমাংশের অর্ধেক কত?
Laila invested Tk. 10,000 in a new mutual fund account exactly three years ago. The value of the account increased by 10 percent during the first year, increased by 5 percent during the second year, and decreased by 10 percent during the third year. What is the value of the account today?
Point B is on the line segment AC. Which of the following is always true?
The number's three times added with its twice equal 90. What is the number?
দুটি সংখ্যার পার্থক্য (1F)16। একটি সংখ্যা (62)10 হলে, অপর সংখ্যাটি কত?
A lift operator is not allowed to carry less than 7 and more that 10.passengers in the lift at one time. If there are 45 people waiting on the ground floor, what is the minimum number of trips that the lift must make in order to transport all the people?

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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?