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work done by man : work done by boy = 2: 1 let work done by a man in 1 day = 2 units let work done by a boy in 1 day = 1 units work done by 10 men in 8 days = 10 × 2 × 8 = 160 units work done by 3 men and 4 boys in 1 day = 3 × 2 + 4 × 1 = 10 units number of days = 160/10 = 16 days
When sending an e-mail, the _____ line describes the contents of the message.
Which of the following is a valid e-mail address?
Which protocol is used to send emails over the internet?
Which protocol is used for sending emails?
Which of the following cannot be a valid Email ID?
What does the "@" symbol in an email signify?
Which encryption algorithm is commonly used for securing email communication?
Which out of the following is the combination of keys used to copy a selected text in word processing software?
An attachment in an E-mail can be:
Digital photos
Documents
Which of the following protocol is not related to E-mail