In how many ways can the alphabets of the word 'ELEPHANTS' be arranged such that the vowels retain their positions?
Correct Answer is: 2520
A person X has four notes of Rupee 1, 2, 5 and 10 denominator. The number of different sums of money she can form from them is…….
Correct Answer is: 15
A question paper had ten questions. Each question could only be answered as True(T) or False(F). Each candidate answered all the questions. Yet, no two candidates wrote the answers in an identical sequence. How many different sequences of answers are possible?