Multiple choice

In how many ways can three consonants and two vowels can be selected from the letters of the word $'TRIANGLE'$

  1. $25$
  2. $13$
  3. $40$
  4. <span class="MathJax_Preview"><span class="MathJax"><span class="math"><span class="mrow"><span class="mn">$30<span class="MJX_Assistive_MathML">20$
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

TRIANGLE has 3 vowels and 5 consonants. The number of selections is C(3,2) x C(5,3) = 3 x 10 = 30.

Keep practicing — related questions