if letters of the word MATHEMATICS are arranged then the probability that C come before E,E before H ,H before I and I before S

If the letters of the word MATHEMATICS are arranged arbitrarily, the probability that C comes before E, E before H, H before I and I before S, is

If all the letters of the word IIT-JEE are written at random in a row, then the probability that both I's come before T, is (a)1/5 (b) 1/(30) (c) 1/(10) (d) 1/3

If all the letters of the word IIT-JEE are written at random in a row, then the probability that both I's come before T, is (a)1/5 (b) 1/(30) (c) 1/(10) (d) 1/3

If all the letters of the word IIT-JEE are written at random in a row, then the probability that both I's come before T, is 1/(15) b. 1/(30) c. 1/(10) d. 1/3

In how many ways can the letters of the word PERMUTATIONS be arranged such that P comes before S.

On a festival day, a man plans to visit 4 holy temples A,B,C,D in a random order. Find the probability that he visits (i) A before B (ii) A before B and B before C.

On her vacations Veena visits four cities A, B, C and D in a random order. What is the probability that she visits: a. A before B? b. A before B and B before C? c. A first and B last? d. A either first or second? e. A just before B?