Seven of my best Brainly answers! Part 1

This post is about the answers I wrote on Brainly.

Using Brainly

Hi people! I have been using an app known as brainly since a few months and have pretty much climbed to the ACE rank a few days ago. It is a Q&A site that has helped me a lot and I am now really enjoying by contributing to it. Later I found that it was a well designed website.

Brainly has features of getting answers as the best and getting them certified. The one with both these marks are definitely in the section of finest articles on the site. I have over 50 best Brainly answers selected and I guess around 30 or 40 are certified by the team.

There are also many dedicated moderators. If you see their score, you get stunned! And yes, that is true. I with 3000 points, that’s like a child’s play. (even though it’s not). I have seen users with over 100,000 points and 1000s of incredible answers. They, are the real champions.

My Profile Pic
A screenshot of my Brainly Profile, with a little over edit.

Without any further ado, let’s get it down!

Note that I have removed the attached images which I also had with answers, just to make sure that it avoids any kind of copyright issues.

Here are 7 of the questions asked on Brainly and my answers to them:

Q. How technology could change the education and shopping in coming decades?

Ans. I think tech can give lots of changes on the coming years.

In education, we see Internet and many helpful websites being accessible to everyone student. Brainly, for an example.
Later the three future, we may have online classrooms and computers installed in every classroom at schools.

For shopping, the e- commerce websites and online shopping can get much more advanced and realistic to the customers, which will result in better and more reliable purchases.

Hence, we can truly say that the future is of computer era!


 Q. Why We People Live On Earth Except Any Other ?

Ans. ■ The essential need for a life to exist can be found only on earth.

□ Like, water, oxygen, soil, adequate sunlight.

■ Earth also has an excellent atmosphere which fits the need for all the biosphere, other than like the planet Venus with too thick atmosphere and Mars which hardly have some traces.

■ Earth is at the exact fine position from the sun, giving us the right amount of sunlight. Ozone layer also exists here with the atmosphere to protect us from UV rays.

■ Hence, currently Life on other planets is NOT possible.

□ However, several space scientists predict that our future seems to be able to colonize other planets, which comes to be Mars as the first possible destination.

Q. Who was Che Guevara? write about him.
I actually had no idea who he was. So I went for a little research that took around 20 minutes and I was ready with the following: 

Ans. □ Che Guevara was born on 14th June 1928 at Rosario, Argentina

□ He was an Argentine Marxist revolutionary, author, guerrilla leader, diplomat, and military theorist.

□ In 1954 he went to Mexico and the following year he met Cuban revolutionary leader Fidel Castro.

□ He is one of the biggest commercial successes and one of the most brutal murderers in recent history.

□ He Died on 9th October 1967 at La Higuera, Bolivia.

Q. In an household an electric bulb of 100 W is used for 10 hours and an electric heater of 1000W is used for 2 hours . calculate 1- ) the cost of using bulbs and the heater for 30 days .take the cost of one unit of electrical energy as 5 rupees.?
This physics question was quite interesting to do!
Ans. Given that,100 W =  bulb is used for 10 hours.
This means for one hour = 100/10 = 10 W per hour       …..(i)Now, heater of  1000 W is used for 2 hours.
This means for one hour = 1000/2 = 500 W per hour         ….(ii)Together they cost: (i) + (ii) = 10 + 500 = 510 W per hourIn 30 days, we have 510 x 30 = 15300 W.

Now, 1000 W = 1 KW

So, 15300 W = 15.3 KWH or 15.3 units

Now, 1 unit = 5 Rs.

Therefore, the cost for 15.3 units = 5 x 15.3 =

Hence, the final answer is Rs. 76.5

Q. A car moves with the speed of 30 km/h for half an hour , 25 km /h for one hour and 40 km/h for two hours . Calculate its average speed .

Ans. Let us find the distances first.

□ Car moves with 30 kmph for half an hour. This means 30 x 1/2 = 15 km

□ Car moves with 25 kmph for an hour. This means 25 x 1= 25 km

□ Car moves with 40 kmph for half an hour. This means 40 x 2 = 80 km

So, the total distance is 80 + 25 + 15 = 120

On, adding the hours, we have: 0.5 + 1 + 2 = 3.5 hours

□ Now we know that, S = D / T

Therefore, S = 120 / 3.5

Ans. 34.2 kmh is the average speed of the car.


Q. Mention any 5 features of Ubuntu operating system.

Ans. Here are some of the features of Ubuntu operating system:

□ The installation is very easy.

□ The community has a great support with a huge user base

□ Ubuntu carries an easy installation for hardware as well as for printers, network drives etc.

□ The OS has a good desktop integration with audio, video and photo lenses.

□ In Ubuntu, if you enable online search and smart filters, it will make it fasterand easier to find the content you need.

and lastly,

□ An Intuitive dash interface making it easy to find files and documents.

Q. Differentiate between RAM & ROM in detail.

Ans. □ Memory is any physical device which is capable of storing information temporarily or permanently.

□ There are mainly two types of memory.

■ the first is RAM which stands for Random Access Memory. It is temporary memory and works faster than ROM.

■ And the second is ROM which stands for Read only memory. This a permanent memory and works Somewhat slower than RAM.


That’s all for now, I will be back with a new post soon! 

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