Question
How many students not appeared in exam
Y? Study the following information carefully and answer the given questions: There are 1000 students in a college. Out of 1000 students some appeared in exams ‘X’, ‘Y’ and ‘Z’ while some not. Number of student not appeared in any exam is equal to number of students appeared in exam ‘Z’ only. Number of students appeared in exam ‘Y’ is 360. Ratio of number of students appeared in exam ‘X’ and ‘Y’ only to number of students appeared in exam ‘Y’ and ‘Z’ only is 2:3. Number of student appeared in exam ‘X’ and ‘Z’ both is half of number of students appeared in only exam ‘Z’. Number of students appeared in exam ‘X’ only is 50% more than number of students appeared in ‘Y’ only. Number of students appeared in all the three exam is 4% of the total number of students in the college. Number of students appeared in ‘Y’ exam only is same as number of students appeared in ‘Y’ and ‘Z’ only.Solution
Total students = 1000 Let, students appear in exam Z only = a Total students appeared in exam Y = 360 Ratio of number of students appeared in exam X and Y only to students appeared in exam Y and Z only = 2:3 Students appeared in exam X and Z both = a/2 Number of students appeared in all three exams = (4/100) × 1000 = 40 Number of students appeared in Y exam only = No. of students appeared in Y and Z only = 3x Number of students appeared in exam X and Y only = (2/3) × 3x = 2x Now, 2x + 3x + 3x + 40 = 360 ⇒ x = 40 And, 12.5x + a + a/2 + a = 1000 => 5a/2 = 500 ⇒ a = 200 
Student not appeared in exam Y = 1000 – 360 = 640
Who among the following stands third to the right of H?
Four of the following five are alike in a certain way and hence form a group. Find the one that doesn’t belong to that group.
Four of the following five forms a group as per the given arrangement, which of the following does not belong to that group?
Four are the same in a certain way thus forms a group. Which among the following does not belong to the group?
What is relation between G with respect to F?
Who among the following is third to the right of Priya?
Who among the following does like Purple?
Six people- T, U, V, W, X and Y are sit along a linear row and face in the north direction. U sits third to the left of W. Neither U nor W sits along th...
Who among the following sits to the immediate left of the person who sits third to the left of F?
Who sits second to the right of W?
Relevant for Exams:
