Q22. Ali has 15 letter tiles that spell the word CONGRATULATIONS. In how many ways can Ali arrange the tiles if all the vowels must be together?Mathematics — NUST Mock 2 — Question 22 of 200A. 1.63 × 108B. 3.27 × 107C. 5.23 × 108D. 1.31 × 1012Practice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →