कार्य तथा ऊर्जा | CLASS 9 | विज्ञान | 6 PM Class by Akash Sir | L13 Hindi Medium

Acids,Bases and pH - Class 10 Science | 7 PM Master Class By Vipin Sir

Class 11 के बाद क्या ? Class 12 Hindi Medium की पढ़ाई साल के शुरू से कैसे करें ?

चाल तथा वेग में अंतर | Speed And Velocity - Explained In Hindi | Class 11 Physics

The following sercies show marks in Statistics of 9 students in Class XI . Find the median marks. {:("Marks",22,16,18,13,15,19,17,20,23):}

The following data : 2, 5, 15, 25, 20, 12, 8, 7, 6, 16, 21,17, 30, 32, 23, 40, 51, 15, 2, 9, 57, 19, 25 is grouped in the classes 0 –5, 5 –10, 10 –15 etc. Find the frequency of the class 20 –25.

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

In a class there were 9 boys and some girls. In a test the mean score obtained by the boys was 13 while that obtaind by the girls was 15. If the overall average was 14.28 what was the total number of students in the class?