Multiple choice

Two numbers are in the ratio 4 : 5 and the sum of the numbers is 90. Then the absolute value of the difference of the two number is

  1. 20

  2. -10

  3. -20

  4. 10

  5. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Let the two numbers be 4x and 5x, respectively. Also, 4x + 5x = 90 Or, 9x = 90 Or, x = 10 Therefore, the required numbers are 4x = 4 X 10 = 40 & 5x = 5 X 10 = 50 Therefore, the difference of the two numbers = 50 - 40 = 10 or 40 - 50 = -10 But, we have been asked to provide an absolute value which is |10| = |-10| = 10 Hence, this option is correct.

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