Find the square root of $20.8849$.

Chapter-Wise 3D Mathematics, English, General Knowledge/General Awareness Videos from R. Gupta Combined Defence Services Examination

15 min 29 sec

Ratio and Proportion Concept

In this video, the basic concepts of Rtion and Proportion are discussed. The content in this video is helpful to solve the Ratio and Proportion related problems.

12 min 00 sec

Proportion and Variation

In this video, the basic concepts of Proportion and Variation are discussed. The content in this video is helpful to understand variation and its applications.

04 min 51 sec

Test for Divisibility by 3

If the sum of the digits of a number is a number that you find in the 3 times table, then the number is divisible by 3. Learn more in this video.