मानव कल्याण में सूक्ष्मजीव Board special |12th Biology | Chapter10 | Lec6 | By Yogesh Sir

Class 12 Biology | Chapter 10 | Microbes in Human Welfare | Important Questions and Quick Revision

Class 12 Biology | Chapter 6 | Molecular Basis Of Inheritance | Important Questions and Quick Revision Part 2

Class 12 Biology | Chapter 6 | Molecular Basis Of Inheritance | Important Questions and Quick Revision Part 1

Class 12 Biology | Chapter 5 Principles of Inheritance and Variations | Important Questions | CBSE Boards Revision | Part 1

Class 12 Biology | Chapter 5 Principles of Inheritance and Variations | Important Questions | CBSE Boards Revision | Part 2

Do Class 10th and 12th Boards Marks Really Matter in Future ?

The average of twelve numbers is 55.5. The average of the first four numbers is 53.4 and that of the next four numbers is 54.6. The 10th number is greater than the 9th number by 3 but lesser than the 11th and 12th numbers by 2 and 3, respectively. What is the average of the 10th and the 12th numbers? बारह संख्याओं का औसत 55.5 है | पहली चार संख्याओं का औसत 53.4 है तथा अगली चार संख्याओं का औसत 54.6 है | 10वीं संख्या 9वीं संख्या से 3 अधिक है लेकिन 11वीं और 12वीं संख्याओं से क्रमशः 2 और 3 कम है | 10वीं और 12वीं संख्याओं का औसत ज्ञात करें |

A can complete one-third of a work in 5 days and B can do 2/5 th of the same work in 10 days. They work together for 6 days. The remaining work is completed by C in 18 days. C alone will do the same work in: A एक काम का एक तिहाई 5 दिनों में पूरा कर सकता है और B उसी काम के 2/5 भाग को 10 दिनों में पूरा कर सकता है। वे 6 दिनों तक एक साथ काम करते हैं। शेष कार्य C द्वारा 18 दिनों में पूरा किया जाता है। अकेले C इस काम को कितने दिनों में पूरा करेगा ?

Class 12 Chemistry | Chapter 10 | Haloalkanes and Haloarenes | Important Questions | CBSE Boards Revision | Part 1

Class 12 Chemistry | Chapter 10 | Haloalkanes and Haloarenes | Important Questions | CBSE Boards Revision | Part 2