Doubtnut: त्रिकोणमिति का परिचय | One Shot | गणित | Class 10 | Akshay Sir

त्रिकोणमिति का परिचय-त्रिभुज | त्रिकोणमिति अनुपात |उदाहरण

Class 10 Maths (Hindi) | Chapter 8 | त्रिकोणमिति का परिचय | Important Questions and Quick Revision

त्रिकोणमिति का परिचय |प्रश्न |त्रिकोणमिति सर्वसमिकाएँ तथा उदाहरण

Class 10 English All Poems Revision | One Shot | First Flight All Poems | Most Important Questions

The average age of 54 girls in a class was calculated as 14 yr. It was later realized that the actual age of one of the girls in the class was 10.5 yr but it was calculated as 13yr . What is the average age (round off) of the girls in the class ?

Winners Announcement 31 August 2020 | Day -10 | Doubtnut Live Class Daily Quiz Contest | Leaderboard

Winners Announcement 10 Sep 2020 | Day -19 | Doubtnut Live Class Daily Quiz Contest | Leaderboard

The number of students in classes A and B are 60 and 70, respectively. The average score in mathematics of students in B is 57 and that of all students in A and B is 63. What is the average score of students in A? कक्षा A और B में छात्रों की संख्या क्रमश: 60 और 10 है | B में गणित में छात्रों का औसत अंक 57 तथा A और B के सभी छात्रों का गणित में औसत अंक 63 है |A के छात्रों का औसत अंक ज्ञात करें |

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

प्रकाश का परिचय|प्रकाश के स्त्रोत|प्रकाश की प्रकृति|One Minute Revision|Summary