NCERT 2022 | हमारे चारों ओर के परिवर्तन - L26 |CLASS 6 विज्ञान | 8 PM Class by Subhadra Ma'am

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

Given below are the marks obtained by 15 students of a class in a test. 26, 39, 21, 25, 30, 28, 22, 19, 20, 43, 6, 17, 18, 20, 40 If the student who got less than 20 marks is declared to be fail, then how many students are pass ?

The marks obtained by 20 students of a class in a test (out of 50) are given below : 40, 44, 45, 46, 50, 42, 41, 8, 26, 28, 9, 32, 24, 6, 42, 36, 39. The range of the data is

Railway fares of 1st, 2nd and 3rd class between two stations were in the ratio of 8 6 : 3. The fares of 1st and 2nd class were subsequently reduced by 1/6a n d1/(12) respectively. If during a year the ratio 12 between the passengers of 1st, 2nd and 3rd classes was 9 :12 : 26 and the total amount collected by the sale of tickets was Rs, 1088, then find the collection from the passengers of 1st class. R s .260 b. R s .280 c. R s .300 d. R s .320

Let the marks obtained by 30 students of a class in a test be 38, 26, 4, 32, 20, 22, 11, 47, 12, 23, 8, 2, 10, 8, 12, 17, 2, 19, 16, 42, 40, 13, 47, 38, 17, 27, 30, 6, 23, 18. Arrange the data in grouped frequency distribution, using groups 0-10, 10-20 e tc.