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Question

If x : y = 5 : 6, then 2x + 3y : 3x + 5y is:

The correct answer is

28 : 45

By substituting the values of x and y and simplifying, the ratio is found to be 28:45.

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Important Questions from Input Output

  1. Which option correctly explains the fundamental difference between input and output devices in a computer system?
  2. Which of the following accurately explains why a touchscreen can be considered both an input and an output device?
  3. When 12 is subtracted from a number, it reduces to its 40%. Two-fifth of that number is:

  4. After an increase of 9% in salary, a person received ₹6,300. What was his salary before the increase (consider integral part only)?

  5. An election was held between two candidates. The winning candidate scored 54% of the valid votes and won by 88 votes. If 58 votes were declared invalid, then find the total number of votes polled in the election.

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