CBSE 2022 | प्राणियों में पोषण - L4 |Nutrition in Animals| CLASS 7 विज्ञान | 8AM Class by Akash Sir

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).

Following are the number of members in 25 families of a village: 6, 8, 7, 7, 6, 5, 3, 2, 5, 6, 8, 7, 7, 4, 3, 6, 6, 6, 7, 5, 4, 3, 3, 2, 5. Prepare a frequency distribution table for the data using class intervals 0-2, 2-4, etc.

Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and give answer 1) if the data in statement I alone are sufficient to answer the question while the data in statement II alone are not sufficient to answer the question. 2) if the data in statement II alone are sufficient to answer the question while the data in statement I alone are not sufficient to answer the question. 3) if the data either in statement I alone or in statement II alone are sufficient to answer the question. 4) if the data even in both statements I and II together are not sufficient to answer the question. 5) if the data in both statements I and II together are necessary to answer the question. What is Kumud’s rank in a class of 40? I. Seema, who is 8th from the top in the class, is above Kailash by 18 ranks, who is below Kumud by 7 ranks. II. Nandini, who is between Kumud and Kishori, is 20th from the bottom.

The given chart shows the number of students in Class 4, Class 5, Class 6 and Class 7 who got first class, second class and failed in the final examination. दिए गए आरेख कक्षा 4, कक्षा 5, कक्षा 6 और कक्षा 7 में उन छात्रों की संख्या को दशशाते हैं, जिन्होंने अंतिम परीक्षा में प्रथम श्रेणी, द्वितीय श्रेणी प्राप्त किया और जो असफल रहे। Which class has the highest number of students who passed? किस कक्षा में उत्तीर्ण होने वाले छात्रों की संख्या सबसे अधिक है?

The given chart shows the number of students in Class 4, Class 5, Class 6 and Class 7 who got first class, second class and failed in the final examination. दिए गए आरेख कक्षा 4, कक्षा 5, कक्षा 6 और कक्षा 7 में उन छात्रों की संख्या को दशशाते हैं, जिन्होंने अंतिम परीक्षा में प्रथम श्रेणी, द्वितीय श्रेणी प्राप्त किया और जो असफल रहे। Which class has the least number of students who passed? किस कक्षा में सबसे कम छात्र उत्तीर्ण हुए हैं?

The number of students in class XI in science, arts and commerce stream of a school over a period of 4 years (2011-2014) has been depicted through the bar chart given below: 4 साल (2011-2014) की अवधि में स्कूल के विज्ञान, कला और वाणिज्य स्ट्रीम में ग्यारहवीं कक्षा में छात्रों की संख्या को नीचे दिए गए दंड आरेख के माध्यम से दर्शाया गया है| What is the average of the number of arts students in the given class over the given period of 4 years? 4 वर्ष की दी गई अवधि में दी गई कक्षा में आर्टस के छात्रों की संख्या का औसत कया है

the daily minimum temperatures in degrees Celsius recorded in a certain Arctic region are as follows: -12. 5 ,-10. 8 ,-18. 6 ,-8. 4 ,-10. 8 ,-4. 2 ,-4. 8 ,-6. 7 ,-13. 2 , -11. 8 ,-2. 3 , 1.2 , 2.6 ,0,-2. 4 ,0, 3.2 , 2.7 , 3.4 ,0,-2. 4 ,-2. 4 ,0, 3. 2 , 2.7 , 3.4 ,0,-2. 4 ,-5. 8 ,-8. 9 ,-14 ,6,-12. 3 ,-11. 5 ,-7. 8 ,-2. 9 Represent them as frequency distribution table taking -19. 9\ to-15 as the first class interval.

The ratio of the number of boys in sections A and B of a class is 2 : 3 and the ratio between the total number of boys and girls in sections A and B is 3 : 4. If the number of girls in B is 50% of the number of boys in B, then what will be the ratio between the number of girls in A and B ? एक कक्षा के अनुभाग A और B में लड़कों की संख्या का अनुपात 2:3 है तथा अनुभाग A और B में लड़कों और लड़कियों की कुल संख्या का अनुपात 3:4 है | यदि 8 में लड़कियों की संख्या, B में लड़कों की संख्या की 50% है, तो A और B में लड़कियों की संख्या का अनुपात कितना होगा ?

Consider the marks, out of 100, obtained by 51 students of a class in a test, given in Table 14.9. M a r k s"N u m b e r o f S t u d e n t s"0-10 5 10-20 10 20-30 4 30-40 6 40-50 7 50-60 3 60-70 2 70-80 2 80-90 3 90-100 9Tot a l 51 Draw a freque

Ratio of the fares of First ,Second and Third class catogory of a train , between two stations is 10:7:2 and the ratio of passenger travelling in these category is 4:9:17 respectively .If the fare is increased by 1/4 in First class , 1/8 in second class and decreased by 10% i Third Class and the ratio of number of passenger in the category remains same .If the total amount received of Rs. 60590 , then find the total amount received from thrid class category .