बल तथा दाब in One Shot!!! | Class 8 Physics | Doubtnut | 2 PM | By Subhadra Ma'am

12 PM Special Class | Class 11 - STRUCTURE OF ATOM || BOHR MODEL By Yakshu Ma'am

Two clocks are set correctly at 10 am on Sunday. One clock loses 3 minutes in an hour while the other gains 2 minutes in an hour. By how many minutes do the two clocks differ at 4 pm on the same day ?

Thirty children were asked about the number of hours they watched TV programmes in the previous week. The results were found as follows: 1 6 2 3 5 12 5 8 4 8 10 3 4 12 2 8 15 1 17 6 3 2 8 5 9 6 8 7 14 12 (i) Make a grouped frequency distribution table for this data, taking class width 5 and one of the class intervals as 5 - 10. (ii) How many children watched television for 15 or more hours a week?

In a class of 75 students, the number of students studying different Subjects are 43 in Mathematics 44 in Physics, 39 in Chemistry, 32 in Mathematics and Physics, 29 in Mathematics and Chemistry 27 in Physics and Chemistry and 24 in all three subjects. The number of students who have taken exactly one subject is

In a class of 30 pupils, 12 take Chemistry, 16 take Physics and 18 take History. If all the 30 students take atleast one subject and no one take all three, then the number of pupils taking 2 subjects is

There are 5 brilliant students in class XI and 8 brilliant students in class XlIl.Each class has 50 students.The odds in favour of choosing the class XI are 2:3. One of the classes is chosen randomly and then a student is randomly selected.Find the probability of selecting a brilliant student.