Multiple choice

If Jim receives m marbles in addition to the number of marbles he had originally, he will have t times as many as he had originally. In terms of m and t, how many marbles did Jim originally have?

  1. (t - m)

  2. (t + 1)/m

  3. m/(t + 1)

  4. m/(t - 1)

  5. (m- 1)/(t - 1)

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

If Jim had x marbles originally, it is given that x + m = tx.   So, m = tx - x = x(t - 1). So, x = m/(t - 1).

Keep practicing — related questions