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I ------ (wait) for the bus for 30 minutes.

I ------ (wait) for the bus for 30 minutes. Correct Answer have been waiting

Present perfect continuous tense 3 সাহায্যকারী Verb হিসেবে 'has/have been' বসে এবং সংশ্লিষ্ট Verb টির সাথে ‘ing' যুক্ত হয়। বাক্যের অর্থঃ ৩০ মিনিট ধরে আমি বাসের জন্য অপেক্ষা করছি।

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Each of the question below consists of a question and three statements number I, II and III given below it. You have to decide whether the data provided in the statement are sufficient to answer the question. If the bus is travelling from Surat to Ahmadabad and a car is travelling from Ahmadabad to Surat, then what is the distance between Surat and Ahmadabad? I. The speed of a car is 40% less than the speed of bus. Bus started at 9 am and car started at 10 am and they meet at 3 pm of the same day. II. After travelling for 1 hour, because of traffic average speed of bus is decreased by 20% and covers distance between Surat to Ahmadabad in 11 hours. Original speed of car is 20% less than original speed of bus and before crossing bus it covered 200 km if starts 1 hour later than bus. After crossing car, bus covers remaining distance in 5 hours. III. Speed of bus is 10 km/hr more than the speed of car and before crossing car ratio of distances covered bus and car in same time was 5 : 4. Time taken by car to cover the distance between Ahmadabad and Surat is 2 hours 15 minutes more than time taken by bus to cover the same distance.
Consider the following solution to the producer-consumer synchronization problem. The shared buffer size is ?. Three semaphores empty, full and mutex are defined with respective initial values of 0, ? and 1. Semaphore empty denotes the number of available slots in the buffer, for the consumer to read from. Semaphore denotes the number of available slots in the buffer, for the producer to write to. The placeholder variables, denoted by P, Q, R, and S, in the code below can be assigned either empty or full. The valid semaphore operations are: wait ( ) and signal ( ). Producer: Consumer: do {         wait (P) ;         wait (mutex) ;         //Add item to buffer         signal (mutex) ;         signal (Q) ; } while (1) ; do {          wait (R) ;          wait (mutex) ;          //Consume item from buffer          signal (mutex) ;          signal (S) ; } while (1) ;   Which one of the following assignments to P, Q, R and S will yield the correct solution?
Sayma reaches bus stand at 9:35 am and is told by Zeenat that the previous bus has left at 9:25 am as per her watch. If Zeenat's watch is 5 minutes faster and the frequency of bus is every 20 minutes, for how long Sayma has to wait to catch the next bus?
A bus and a truck are available to cross a jungle. The speed of the truck is thrice that of the bus. The capacity of the truck is 50 persons and that of bus is 30 persons. The average occupancy of the bus is twice that of the truck. The tickets for the bus and the truck cost Rs 1 and Rs 1.50 respectively. What is the ratio of the average rupee collection of the truck to that of the bus in a day? Assume there is no wastage time between trips and the occupancy of the bus / truck is defined as the ratio of the actual number of persons boarding it and its capacity.
A bus runs at 80 km per hour and reaches its destination 40 minutes late. If it had moved at a speed of 90 kilometers per hour, it would have reached only 8 minutes late. The right time in which the bus completes it's journey is: A. 248 minutes B. 340 minutes C. 212 minutes D. 315 minutes
The District Transport Authority has started special bus services for college going students. One bus starts from village P. The number of girls in the bus is one-fourth of the number of boys. In village Q, 20 boys leave the bus at their college stop and ten girls enter the bus. Now the number of boys and girls is equal. How many students enter the bus in the beginning?
A bus started its journey with some passengers from city P to city S via cities Q and R respectively. On reaching city Q, 30% of the passengers left the bus and 2 new passengers boarded the bus. On reaching city R, 40% of the passengers left the bus and 7 new passengers boarded the bus. If 25 passengers reached city S, with how many passengers had the bus started from city P?
This question comprises 3 sentences - A, B and C each of which comprises a sentence using the word WAIT. Identify the sentences where the word has been correctly used and mark that combination (A) Wait your options before investing (B) How long must we wait? (C) The longer we wait time the less is the chance of recovery
Consider the following threads, T1, T2, and T3 executing on a single processor, synchronized using three binary semaphore variables, S1, S2, and S3, operated upon using standard wait() and signal(). The threads can be context switched in any order and at any time. T1 T2 T3 While(true) { Wait(S3); Print(“C”); Signal (S2); } While(true) { Wait(S1); Print(“B”); Signal (S3); } While(true) { Wait(S2); Print(“A”); Signal (S1); }   Which initialization of the semaphores would print the sequence BCABCABCA….?
Given below are three quantities named A, B and C. Based on the given information; you have to determine the relationship between the two quantities. You should use the given data and your knowledge of Mathematics to choose between the possible answers. The options represent the relations between these three quantities A) > B) < C) = D) ≤ E) ≥ Two pipes P and Q can fill an empty tank in 20 minutes and 30 minutes respectively. Quantity A: If both pipes are opened simultaneously, then after what certain time P should be closed so that further time after which the tank is filled in 15 minutes? Quantity B: If both are opened and P is closed after 8 minutes, how much further time would it take for Q to fill the bucket? Quantity C: Pipe A and B can fill a tank in 15 minutes and 10 minutes respectively. Pipe C can empty the tank in 5 minutes. Pipe A and B are opened simultaneously and after the 4-minute pipe, C is also opened. In what time the tank will be emptied?