Question
If the 5-digit number 676pq is divisible by 3, 7 and 11,
then what is the value of (6p – 7q)?Solution
When 676xy is divisible by 3, 7 &11, it will also be divisible by the LCM of 3, 7 & 11. Dividend = Divisor × Quotient + Remainder By taking the largest 5-digit number 67699 and divide it by 231. ∵ 67699 = 231 × 293 + 16 ⇒ 67699 = 67683 + 16 ⇒ 67699 - 16 = 67683 (completely divisible by 231) ∴ 67683 = 676pq (where p = 8, q = 3) (6p – 7q) = 6 × 8 - 7 × 3 ⇒ 48 - 21 = 27 ∴ The required result = 27
Select the true statement about an operating system (OS)?
The data remains the same after saving the file and turning off the computer-
Which protocol is used for secure communication over the internet?
Which of these output devices are used for the translation of information from any computer into a pictorial form on the papers?
Which of the following file formats is commonly used for compressed files?
Which of the following keyboard shortcuts is used to view the properties of a selected object?
What is the primary purpose of virtual memory?
Why would BCC: be used in an e-mail?
Which of the following is used for close a tab on a browser?
With respect to computers, which one of the following best describes phishing?
Relevant for Exams:
