Q10. In how many ways can the 15 letter tiles of the word CONGRATULATIONS be arranged if all the vowels must be kept together?Mathematics — NUST Mock 5 — Question 10 of 200A. 1.63 × 108B. 3.27 × 107C. 1.31 × 1012D. 1.00 × 1014Practice more Mathematics MCQs for entrance exam preparation on Examora.io.← Previous Question Next Question →