Multiple choice

If a and b are positive integers and (a-b)/3.5 = 4/7, then

  1. b < a

  2. b > a

  3. b = a

  4. b > = a

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

Given (a-b)/3.5 = 4/7 and a, b are positive integers. Cross-multiply: 7(a-b) = 4 × 3.5 = 14, so a - b = 2. Since a - b = 2 > 0, we have a > b, which means b < a. Option A is correct.