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Higher Study | General Aptitude | Numerical Ability

How many numbers from 1 to 100 are such each of which is divisible by 9 and whose atleast one digit is 9?
The following diagram having three interlocking circles I, S and P, where circle I stands for Indians, circle S for scientists and circle P for Politicians. Different regions in the figure are lettered from a to g: Which region represents non-Indian scientists who are Politicians?
Study the histogram that shows the marks obtained by students in an examination and answer the question that follows. By what percentage is the number of students who obtained marks between 200 and 300 more than the number of students who obtained 350 or more marks?
A cube of side 1 unit is placed in such a way that the origin coincides with one of its top vertices and the three axes run along three of its edges. What are the co-ordinates of the vertex which is diagonally opposite to the vertex whose coordinates are (1, 0, 1)?
The given chart shows the number of students in Class 4, Class 5, Class 6 and Class 7 who got first class, second class and failed in the final examinations. What is the pass percentage of Class 6?
In a school of 1000 students, 300 students play chess and 600 students play football. If 50 students play both chess and football, the number of students who play neither is
The bar graph below shows the output of five carpenters over one month, each of whom made different items of furniture: chairs, tables, and beds. Consider the following statements. i. The number of beds made by carpenter C2 is exactly the same as the number of tables made by carpenter C3. ii. The total number of chairs made by all carpenters is less than the total number of tables. Which one of the following is true?
Mohan, the manager, wants his four workers to work in pairs. No pair should work for more than 5 hours. Ram and John have worked together for 5 hours. Krishna and Amir have worked as a team for 2 hours. Krishna does not want to work with Ram. Whom should Mohan allot to work with John, if he wants all the workers to continue working?
The police arrested four criminals - P, Q, R and S. The criminals knew each other. They made the following statements: P says “Q committed the crime.” Q says “S committed the crime.” R says “I did not do it.” S says “What Q said about me is false.” Assume only one of the arrested four committed the crime and only one of the statements made above is true. Who committed the crime?
S, T, U, V, W,X, Y and Z are seated around a circular table. T's neighbours are Y and V, Z is seated third to the left of T and second to the right of S. U's neighbours are S and Y and T and W are not seated opposite each other. Who is third to the left of V?
Four people are standing in a line facing you. They are Rahul, Mathew, Seema, and Lohit. One is an engineer, one is a doctor, one a teacher, and another a dancer. You are told that: Mathew is not standing next to Seema There are two people standing between Lohit and the engineer Rahul is not a doctor The teacher and the dancer are standing next to each other Seema is turning to her right to speak to the doctor standing next to her   Who among them is an engineer?
P, Q, R and S crossed a lake in a boat that can hold a maximum of two persons, with only one set of oars. The following additional facts are available. (i) The boat held two persons on each of the three forward trips across the lake and one person on each of the two return trips. (ii) P is unable to row when someone else is in the boat. (iii) Q is unable to row with anyone else except R. (iv) Each person rowed for at least one trip. (v) Only one person can row during a trip. Who rowed twice?
The Venn diagram shows the preference of the student population for leisure activities. From the data given, the number of student who like to read books or play sports is
There are 16 teachers who can teach Thermodynamics (TD), 11 who can teach Electrical Sciences (ES), and 5 who can teach both TD and Engineering Mechanics (EM). There are a total of 40 teachers. 6 cannot teach any of the three subjects, i.e. EM, ES or TD. 6 can teach only ES. 4 can teach all three subjects, i.e. EM, ES and TD. 4 can teach ES and TD. How many can teach both ES and EM but not TD?
A flat is shared by four first-year undergraduate students. They agreed to allow the oldest of them to enjoy some extra space in the flat. Manu is two months older than Sravan, who is three months younger than Trideep. Pavan is one month older than Sravan. Who should occupy the extra space in the flat?
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