If d=2.0453 and d* is the decimal obtained by rounding d to the nearest hundred what is the value of d*-d?
The population of a bacteria culture doubles every 2 minutes. Approximately how many minutes with it take for the population to grow from 1,000 to 500,000 bacteria?
If xy>0 and yz<0, which of the following must be negative?
If positive integers x and y are not both odd, which of the following must be even?
If 42.42=k(14+m/50), where K and m are positive integers and m<50, then what is the value of k+m?
A shopkeeper purchases 70kg of potatoes for Tk. 420 ans sold the whole lot as the rate of Tk. 6.50 per kg. What will be his gain in percentage ?
A culprit was spotted by a policeman from a distance of 250 meter. When the policeman started running towards the culprit at a speed of 10 km/h, the culprit also fled. If his speed was 8 km/h, find how far the culprit had run before he was overpowered.
If y=(3x-6)/x, than for what values of x, y will be positive?
57° পূরককোণ কত?
১৮০০*০.০১=
১২
১৫
10
18
110০ সম্পূরককোণ কত?
পাঁচ অংকের ক্ষুদ্রতম সংখ্যার এবং চার অংকের বৃহত্তম সংখ্যার অন্তর কত?
A train travels from New York to Chicago, a distance of approximately 840 miles, at an average rate of 60 miles per hour and arrives in Chicago at 6:00 in the evening , Chicago time . At what hour in the morning, New York City time, did the train depart for Chicago time . At what hour in the morning , New York City time, did the train depart for Chicago ? ( Chicago time is one hour earlier than New York City time.)
A ferry, when empty, travels twice as fast as when it is full. It travels 20 miles south with a cargo, spends 30 minutes for unloading, and returns to its original port empty in a total of 8 hours, what is the speed of the ferry when it is empty?
A bicycle has two wheels (one large and one small) of 120 cm and 40 cm in diameters. When the large wheel makes 10 revolutions, how many revolutions does the small wheel make in that time?
How may pieces of 85 cm length can be cut from a road 42.5 metres long?
Rakid lives 4km due west of Faisal's house. Asif lives 6km due north of Faisl's house and 4km due west of Hamed's house. What is the minimum distance from Rakib's house to Hamed's house?
The sum of three digits x, y and z is 12 . What is the largest 3-digit number that can be found using each of the digits exactly once ?
দুটি সন্নিহিত কোণের সমষ্টি দুই সমকোণ হলে একটিকে অপরটির কী বলে?