फसल उत्पादन एवं प्रबंध - L3 | आधारिक फसल पद्धतियाँ |CLASS 8 विज्ञान | 8 AM Class by Subhadra Ma'am

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

Two cars A and B leave Delhi at 8:30 a.m. and 9 a.m. for Shimla, respectively. They travel at the speeds of 40km/h and 50 km/h respectively. How many kilometres away from Delhi will the two cars be together? दो कारें A तथा B दिल्ली से क्रमशः 8: 30 a.m एवं 9 a.m में शिमला जाने के लिए खुलती है | वे क्रमशः 40 किमी/घंटा तथा 50 किमी/घंटा की चाल से यात्रा करती हैं | दोनों कारें दिल्ली से कितने किलोमीटर की दूरी पर एक साथ होंगी ?

A train starts from A at 6 AM and reaches B at 11 AM on the same day. Another train starts from B at 8 AM and reaches A at 3 PM on the same day. At what time the two trains will have crossed each other? एक ट्रेन सुबह 6 बजे शुरू होती है और उसी दिन सुबह 11 बजे B पर पहुंचती है। एक अन्य ट्रेन B से सुबह 8 बजे शुरू होती है और उसी दिन दोपहर 3 बजे A पहुंचती है। किस समय पर दोनों ट्रेनें एक-दूसरे को पार कर लेगी ?

Train X leaves New York at 1 A.M. and travels east at a constant speed of x mph. If train Z leaves New York at 2 AM and travels east, at what constant rate of speed will train Z have to travel in order to catch train X at exactly 5: 30 A.M.? 5/6x b. 9/8x c. 6/5x d. 9/7x e. 3/2x

Railway fares of 1st, 2nd and 3rd class between two stations were in the ratio of 8 6 : 3. The fares of 1st and 2nd class were subsequently reduced by 1/6a n d1/(12) respectively. If during a year the ratio 12 between the passengers of 1st, 2nd and 3rd classes was 9 :12 : 26 and the total amount collected by the sale of tickets was Rs, 1088, then find the collection from the passengers of 1st class. R s .260 b. R s .280 c. R s .300 d. R s .320

The average of the weights of boys in a class is 69.3 kg and that of girls in the same class is 59.4 kg. If the average of the weights of all the boys and girls in the class is 63.8 kg. then the percentage of the number of girls in the class is:

The average weight of the boys in a class is 69.3 kg and that of the girls in the same class is 59.4 kg. If the average weight of all the boys and girls in the class is 63.8 kg, then the percentage of the number of boys in the class is:

The average age of students of a class is 15.8 years. The average age of boys in the class is 16.4 years and that of the girls is 15.4 years. The ratio of the number of boys to the number of girls in the class is (a) 1 : 2 (b) 2 : 3 (c) 3 : 4 (d) 3 : 5