Question
How many students appeared in at most two
exams? 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 
Students appeared in atmost two exams = 180 + 120 + 200 + 60 + 80 + 120 + 200 = 960
Given below sentence with two blanks. Below sentence are given four pair of words among which one pair might fill the blank. If none of the words fill ...
The interviewers described these chats as essential in building up rapport and trust with the participant, and for ________ their concerns.
They were ________________ by nature with a strong work ethic and a firm belief in self-sufficiency.
Sentences are given below with a blank. Fill in these blanks with the appropriate option.
The young boy's __________ smile brightened up the ro...
- In each of the following sentences, there is a blank space. Below each such sentence, there are five options with one word each. Fill up the blank with the...
Add suitable question tags to the following statements from among the choices given below them.
Let us go slow on the matter, ____?
(A) The artist’s __________ was evident in the beautiful and intricate details of the sculpture.
(B) The project was completed with great _____...
Directions: In each of the following sentences, a blank is given. Choose the most appropriate option from the provided choices to fill in the blank and...
Scientists, __________ one of Indian origin, have __________ an ultra-thin device that can power your smartphone, fitness tracker and other gadgets usi...
In each of the questions below, a sentence is given with two blanks, indicating that some parts are missing. Identify the correct pair of words that fit...
Relevant for Exams:
