How many students not appeared in exam Y?
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
Consider the following statements regarding the Great Indian Desert:
1. The prevailing southwest monsoon winds tend to bypass the Thar to the eas...
Consider the following rivers:
1. Vamsadhara
2. Indravati
3. Pranahita
4. Pennar
Which of the above are tributaries of Godavari?
Gulf of khambat is the mouth for which rivers
Which one of the following is an artificial lake?
Which Country shares the longest boundary with India?
Which channel separates the Andaman and Nicobar in the Bay of Bengal?
‘Saddle peak’ is the highest peak of
Which of the following statements are correct regarding Himalayan Mountain range?
1. The Shiwalik formations are absent in Arunachal Himalayas.
Kanger Ghati National Park is situated in the state of
Stobach waterfall is a beautiful waterfall located in?