Multiple choice

Three numbers are in the ratio (1 : 3 : 4) and their sum is 96. The third number is half of the sum. Find the difference between the sum of the first two numbers and the third number?

  1. 2

  2. 0

  3. 3

  4. 9

  5. None of these

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

If numbers are 1x, 3x, 4x then sum is 8x = 96, so x = 12. Third number = 4x = 48. First two sum = 1x + 3x = 48. Difference = 48 - 48 = 0. The statement 'third number is half of sum' is consistent with 48 = 96/2.