SAT Math Question of the Day

Math Category: Fractions Level 2:

Q: If 3x/5 = 18/15, then what is x?

  1. 2/3
  2. 5/3
  3. 2
  4. 6
  5. 15/2

UNANSWERED.

The correct answer is C.

A: The answer is 2.

Cross-multiply to solve for x.
3x/5 = 18/15
3x × 15 = 5 × 18
45x = 90
x = 2