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Students of a class stand in a queue. If Rajib is 19th in order from both ends, how many students are there in the queue?
In a stadium there are four stands Rajiv Gandhi stand, Sunil Gavaskar stand, Venkatesh Prasad stand and Pt. Din Dayal stand in which seats are alloted to commuters. The number of vacant  seats in Rajiv Gandhi stand, Sunil Gavaskar stand, Venkatesh Prasad stand and Pt. Din Dayal stand are 11, 8, 13 and 7 respectively. Anil is buying a ticket find the probability that he get a seat in Venkatesh Prasad stand.
A Double-ended queue supports operations such as adding and removing items from both the sides of the queue. They support four operations like addFront(adding item to top of the queue), addRear(adding item to the bottom of the queue), removeFront(removing item from the top of the queue) and removeRear(removing item from the bottom of the queue). You are given only stacks to implement this data structure. You can implement only push and pop operations. What are the total number of stacks required for this operation?(you can reuse the stack)
A double-ended queue supports operations like adding and removing items from both the sides of the queue. They support four operations like addFront(adding item to top of the queue), addRear(adding item to the bottom of the queue), removeFront(removing item from the top of the queue) and removeRear(removing item from the bottom of the queue). You are given only stacks to implement this data structure. You can implement only push and pop operations. What’s the time complexity of performing addFront and addRear? (Assume ‘m’ to be the size of the stack and ‘n’ to be the number of elements)
Each question below is followed by two statements I and II. You have to determine whether the data given in the statements are sufficient for answering the question. You should use the data and your knowledge of Mathematics to choose the best possible answer. What is the average weight of new students added? I. In a class 60% students are male and there average weight is 15 kg more than the female students, 9 males and 6 new female students joined the class and the average weight of the class increased by 0.84 II. Total male students in the class is 12 more than female students adding 9 male students to the class increases the average weight of male students by 1 kg and adding 6 female students increases the average weight of female students by 0.6.
In a car there are eight persons, they are going to a picnic. Riju is the son of Shreya, who is the daughter - in - law Ratan. There are two married couples in that car. Pratima is the only one sister - in - law of Prasant and married to Ratan. Pratima has one daughter and one son. Vivek calls Prasant as his uncle. Sonu is the sister - in - law Shreya who has two children. Sneha is the granddaughter of Ratan and niece of Sonu . How is Prasant related to Sneha?
In a queue of 90 people, Ratan is 15th to the right of Pawan, who is 40th from left. What is the position of Ratan in a queue from right?
There are five classes class 1, class 2, class 3, class 4 and class 5 in a school. They are one above the other. Class 1 is at the bottom, then class 2 above it and so on. Five videos M1, M2, M3, M4 and M5 are displayed in these given classes. Only one video is displayed in a particular class. Each video is displayed only one time. Video M5 is displayed at an even numbered class. Video M2 is displayed at class 1. Video M1 is displayed at the class just below M5. Video M4 is not displayed at even numbered class. Which of the following statement is not correct?
There are 75 students in a class, they all play at least one of the instruments namely violin, guitar, and harmonium. Further it is known that, 15 students play all the three instruments. 20 students play both guitar and violin, 30 students play both guitar and harmonium and 25 students play both violin and harmonium. A total of 50 students can play harmonium and a total of 45 students play violin. What is the number of students who can play only guitar?
In a class, 110 students like history, 160 students like civics and 170 students likes English. Also, 10 students like both civics and English 20 students like both history and English, 30 students like both civics and history and 40 students like all three subject. How many students like only English?