प्रकाश - परावर्तन तथा अपवर्तन | Class - 10 विज्ञान | 6 PM Class by Ruchi Ma'am | L13 | Hindi Medium

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

Class 10 Maths (Hindi) | Chapter 6 त्रिभुज | Important Questions and Quick Revision

Q5. The marks obtained in a class test by 30 students of a class are as follows. Marks obtained Number of students No. earth ats No- ernaun ?ove 49 More than or equal to 1044 38 23 More than or equal to 25 13 More than or equal to 308 More than or equal to 354 More than or equal to 40 2 More than or equal to 5 More than or equal to 15 median l (n More than or equal to 20 Find the: (0) mean marks (i modal marks (ii) median marks. 6. The mode of the following frequency distribution is 36. Find the values of x and

There are 50 students admitted to a nursery class. Some students can speak only English and some can speak only Hindi. Ten students can speak both English and Hindi. If the number of students who can speak English is 21, then how many students can speak Hindi, how many can speak only Hindi and how many can speak only English? (a) 21, 11 and 29 respectively (b) 28, 18 and 22 respectively (c) 37, 27 and 13 respectively (d) 39, 29 and 11 respectively

In a class of 20 students, 10 boys brought 11 books each and 6 girls brought 13 books each. Remaining students brought atleast on book each and no two students brought the same number of books. If the average number of books brought in the class is a positive integer, then what could be the total number of books brought by the remaining students?

The distance (in km) of 40 engineers from their residence to their place of work were found as follows: 5 3 10 20 25 11 13 7 12 31 19 10 12 17 18 11 32 17 16 2 7 9 7 8 3 5 12 15 18 3 12 14 2 9 6 15 15 7 6 12 Construct a grouped frequency distribution table with class size 5 for the data given above taking the first interval as 0-5 (5 not included). What main features do you observe from this tabular representation?

Class 10 Science (Hindi) | Chapter 2 | अम्ल, क्षार तथा लवण | Important Questions | Quick Revision