Mathematician Ramanujam didn’t have any close friends and someone asked him the reason. He replied that although he wanted to have close friends but nobody was up to his expectations.

When pressed how he expected his friend to be, he replied, "like numbers 220 and 284!"

The person got confused and asked what is the connection between friendship and these numbers!

Ramanujam asked him to find the divisors of each number!

With much difficulty, the person derived and listed them as,

220 → 1,2,4,5,10,11,20,22, 44, 55,110,220

284 →1,2,4,71,142,284

Ramanujam then asked the person to exclude the numbers 220 and 284 and asked the sum of the remaining divisors.

The person was astonished to find,

220 → 1+2+4+5+10+11+20+22+44+55+110=284

284 1+2+4+71+142=220

Ramanujam explained that an ideal friendship should be like these numbers, to complement each other. Even when one is absent, the other should represent the friend !😊😊

Happy Raksha Bandhan to all of you God always bless you❤️

Who represented India at the 6th BRICS Environment Ministers Meeting?
- Prakash Javadekar

As per a new study, 1 in 3 children worldwide are threatened by high levels of which chemical element in their blood?
- Lead

Which Ministry launched a App called ‘Mausam’?
- Earth Sciences

Mole concept chapter 1 Class 11👆

Introduction of quadratic equations

https://youtu.be/GaWCqUeyOnQ

Exercise 4.1

https://youtu.be/Z_UjkuMpD9s

Exercise 4.2 part 1

https://youtu.be/_PBhL_gDkOg

Exercise 4.2 part 2

https://youtu.be/MhahVkREf_c

Exercise 4.3 part 1

https://youtu.be/B6ti1B1Ryr4

Exercise 4.3 part 2

https://youtu.be/3MM_erbH7M4

Exercise 4.4

https://youtu.be/lOrtXbVaR_c

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Dear learners, I Request you that those not subscribe my YouTube channel plz subscribe . Plz hurry up 👍

Part 1
https://youtu.be/EU1qspe8lwE

Part 2
https://youtu.be/fepa1VL6cSQ

Part 3
https://youtu.be/ulgyAG9ru6s

Part 4 ( important questions)

https://youtu.be/3zlQ3ju3ol8

Part 5 ( important MCQs)
https://youtu.be/hG2zuWyluXo

Emailing Garg Tutorials - Class 10th Maths - Easy Access Links-1.pdf

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https://youtu.be/y2z-hRp8NHY Basics of Surface Area and Volume. Must watch and Subscribe

https://youtu.be/DkmZ7y1iMG0

Hi guys, channel per maths quiz start ho chuki hai must watch and write all the answers of the quiz. all the best !!!

https://www.youtube.com/playlist?list=PL-hYriZY1lNzKZSJP6w1fJVtJY1N2RK4u Must watch and don't fprget to subscribe

Ncert Activity 1.1

Burning 🔥 of Magnesium Ribbon 🎗

Important questions from this activity

1. Why Magnesium Ribbon 🎗 should be cleaned before burning?

2. Write the balance chemical equal for reaction of Magnesium with oxygen.

3. Magnesium burn in air to form which compound?

4. Burning of Magnesium is which type of reaction?

5. What is colour of Magnesium oxide?

6. Magnesium burn with __ flame.

7. A shining metal 'M' on burning gives a dazzling white flame and changes to a white power 'N'

a) Identified 'M' and 'N'

b) Represent the above reaction in the form of balance chemical equation.

c) Does 'M' undergo oxidation or reduction in this reaction? Justify.

7th questions is from board exam 2020 😳 .

Note :- In board exam they never ask direct question from any book. They ask questions from the concepts not from the book. And the concepts are from NCERT so you should read each and every line of NCERT if you want to do better in your exam.

Best of luck 😍 😍

https://www.youtube.com/playlist?list=PL-hYriZY1lNx1NOHIJ9OFMZhifuhDa8cF must watch like, share and don't forget to subscribe❤️

Ch-12 Area related to the Circles Class 10 Maths NCERT: https://www.youtube.com/playlist?list=PL-hYriZY1lNxuCIDBpU7SzzNwZ65DMpsz

Chapter 7 worksheet