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

दोहरान |प्लास्टिक का पर्यावरण पर प्रभाव |4 R सिद्धांत |प्राकृतिक एवं संश्लेषित रेशों में अंतर |रेशों को जलाकर उसकी पहचान करना |सारांश

Class 11 Exam में सिर्फ 7 दिन ? ये देखो Exam लगेगा Easy ✅ Poonam Mam

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 .

Number of ways in which 7 people can occupy six seats,3 seats on each side in a first class railway compartment if two specified persons are to be always included and occupy adjacent seats on the same side,is (k).5! then k has the value equal to: 2 (b) 4 (d) 8 (d) None of these

Doubtnut Live Class Launch for Class 7th & 8th |Big Announcement |Good News for Class 7 & 8 Students

The number of boys and girls in a class are in the ratio 7:5. The number of boys is 8 more than the number of girls.What is the total class strength?

The marks obtained by 40 students of class VIII in an examination are given below: 18,8,12,0,8,16,12,5,23,2,16,23,2,10,20,12,9,7,6,5,3,5, 13,21,13,15,20,24,1,7,21,16,13,18,23,7,3,18,17,16 Present the data in the form of a frequency distribution using the same class size, one such class being 15-20 (where 20 is not included).