वंशागति का आणविक आधार | Class12 NCERT जीव विज्ञान | 11AM Class By Parth Sir | L7 | Hindi Medium

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

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

NEET 2020 - Revision In 60 Days | NCERT Class 11 Chapter 7 Structural Organisation of Animals Part -1 | NEET Biology

Previous Class Revision|NCERT प्रश्नावली 7.5 का हल भाग-2|सारांश

The average age of 15 boys in a class is 11 years 3 months. If A boy of 12 years and 7 months join that class, what will be the average age of the boys in the class?

The marks obtained (out of 20) by 30 students of a class in a test are as follows: 14, 16, 15, 11, 15, 14, 13, 16, 8, 10, 7, 11, 18, 15, 14, 19, 20, 7, 10, 13, 12, 14, 15, 13, 16, 17, 14, 11, 10, 20. Prepare a frequency distribution table for the above data using class intervals of equal width in which one class interval is 4-8 (excluding 8 and including 4).

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?

Construct a frequency table for the following ages (in years) of 30 students using equal class intervals, one of them being 9-12 , where 12 is not included. 18, 12, 7, 6, 11, 15, 21, 9, 8, 13, 15, 17, 22, 19, 14, 21, 23, 8, 12, 17, 15, 6, 18, 23, 22, 16, 9, 21, 11, 16 .

निम्नलिखित पद्यांश के आधार पर उत्तर दीजिए: युद्ध, निरंतर युद्ध विश्व है, 1 युद्धों की ही एक कहानी 2 शान्तिा कहाँ है शान्ति? 3 यहाँ तो नित रिपुओं से लड़ना है 4 नित्य उलझना समरांगण में 5 सीना ताने अड़ना है 6 भोले-भाले सीधे-सादे 7 नहीं यहाँ पर जीने पाते 8 जो लड़ते, आगे बढ़ते हैं। वे ही जीवन-गाना गाए 10 नहीं मिली यह शान्त बैठने 11 को हमको अनमोल जवानी 12 युद्ध, निरंतर युद्ध विश्व है 13युद्धों की ही एक कहानी 14'शान्ति! कहाँ हैं' - में कवि का भाव है