NCERT 2022| रेशो से वस्त्र तक -L4 | From fiber to fabric | CLASS 7 विज्ञान | 8 AM Class by Akash Sir

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 train ticket fare from places A to B in 2nd class AC and 3rd class AC is Rs.2,500 and Rs.2,000, respectively. If the fares of 2nd class AC and 3rd class AC are increased by 20% and 10%, respectively, then find the ratio of the new fares of 2nd class AC and 3rd class AC. स्थान A से स्थान B तक रेलगाड़ी का द्वितीय श्रेणी ए.सी. और तृतीय श्रेणी ए.सी. का किराया क्रमशः रु.2,500 और रु.2,000 है। यदि द्वितीय श्रेणी ए.सी और तृतीय श्रेणी ए.सी. के किराए में क्रमशः 20% और 10% की वृद्धि हो जाए, तो द्वितीय श्रेणी एसी. और तृतीय श्रेणी ए.सी. के नए किराए का अनुपात ज्ञात कीजिए।

In a class Vidya ranks 7th from the top, Divya is 7 ranks ahead of Medha and 3 ranks behind Vidya. Sushama, who is 4th from the bottom, is 32 ranks behind Medha. How many students are there in the class? 1) 52 2) 49 3) 50 4) 51 5) None of these

Ratio of First ,Second and Third Class train fares between two stations was 8:6:3 .First Class and Second Class train fares are reduced by 1/6 and 1/12 repectively .Ratio of no of passengers in first, second and third class in a year is 4:9:24 .From a stattion total sale of ticket of Rs. 355600 .First the amount collected from first class .

A school has five houses A, B,C,D and E. A class has 23 students, 4 from houses A, 8 from house C, 2 from house D and rest from house E. A single student is selected at random to be the class monitor. The probability that the selected student is not from A, B and C is

X is 7th from the top while Y is 16th from the bottom in the class ranking. If they interchange their positions, then X becomes 21st from the top. What will be the position of Y from the bottom? X शीर्ष से 7 वें स्थान पर है जबकि Y कक्षा रैंकिंग में नीचे से 16 वें स्थान पर है। यदि वे अपनी स्थिति को बदलते हैं, तो X शीर्ष से 21 वें स्थान पर आ जाता है। नीचे से Y की स्थिति क्या होगी?

Thirty children were asked about the number of hours they watched TV programmes in the previous week. The results were found as follows: 1 6 2 3 5 12 5 8 4 8 10 3 4 12 2 8 15 1 17 6 3 2 8 5 9 6 8 7 14 12 (i) Make a grouped frequency distribution table for this data, taking class width 5 and one of the class intervals as 5 - 10. (ii) How many children watched television for 15 or more hours a week?

Akash ranks eighth from the top and thirty from the bottom in a class. How many students are there in the class? 1) 35 2) 37 3) 39 4) 34 5) None of these