UPSC Government Jobs Exams Category

In how many ways can 6 plastic beads of different colours be arranged so that the blue and green beads are never placed together?

Read Solution (Total 0)

UPSC Other Question

In how many ways can the letters of the word ‘FRACTION’ be arranged so that no two vowels are together? 7 candidates are to take examination, 2 in mathematics and remaining in different subjects. In how many ways can they be seated in a row so that the two examinees in Mathematics may not sit together?