Explanation

Total heads = 200

Total legs = 580

Calculation:

Let, number of pigeons be x and number of rabbits be y

According to the question,

x + y = 200     ...i)

2x + 4y = 580

⇒ x + 2y = 290     ...ii)

From (i) and (ii) we get,

y = 90

⇒ x = 200 – 90 = 110

∴ There are 110 pigeons in the zoo

Explanation

Explanation

Initial ratio: Boys:Girls = 8:5

After 22 more girls join:

Boys = 8x, Girls = 5x + 22 (where x is a constant)

Total students = 286 + 22 = 308

8x + 5x + 22 = 308

13x = 286

x = 22

Boys = 8x = 176

Girls = 5x + 22 = 132

New ratio = Boys:Girls = 176:132 = 4:3 (after simplification)

Explanation

• E-mail stands for: Electronic Mail

• Father of E-mail: Ray Tomlinson

• First E-mail sent: 1971

• @ is used to divide an email into: two parts

• SMTP helps to send: E-mails

• SMTP stands for: Simple Mail Transfer Protocol

• Received email is saved: inbox

• Sent email is saved in: sent box

• Maximum attachment size in Yahoo Email: 25 MB

• G-mail stands: Google Mail

• Email spam also called: junk email

• To close email account click: sign out

• To create new E-mail: Sign Up

• Email hacking means: Illegal access to open email accounts of others

• Junk email is also called: Spam 

•  At sign (@): always a part of email address

• Sending an E-mail is similar to: writing a letter

• A allows us to access our e-mail from anywhere: Webmail interface 

• Bookmark:  is associated with Internet E-mail

Explanation

Explanation

Luxembourg became the first country in the world to offer free public transportation in 2018.

This includes all public transportation options, such as buses, trains, and trams.

Explanation

Abd al-Rahman I was the founder and first emir of the Emirate of Córdoba, ruling from 756 to 788.

He established the Umayyad dynasty in al-Andalus.

Explanation

Ustad Bade Fateh Ali Khan was born on 20 April 1935 in Hoshiarpur, Punjab Province of British India.

He was honored with the Pride of Performance Award by the President of Pakistan in 1969.

He was passed away on 4 January 2017 at the age of 82.

Explanation

Benjamin Franklin discovered electricity and invented the lightning rod and bifocals.

Benjamin Franklin's 1752 kite experiment proved lightning is electricity.

Explanation

Lord Curzon divided Bengal into two provinces on 16-10-1905

on October 16, 1905, by Lord Curzon, the British colonial administrator of India at the time

The partition of Bengal was the most important event during the rule of Lord Curzon

The province was divided into West Bengal, which had a majority of Hindus,

and East Bengal, which had a majority of Muslims

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