CTS Company Numerical Ability Permutation and Combination

In how many different ways can the numbers ‘256974’ be arranged, using each digit only once in each arrangement, such that the digits 6 and 5 are at the extreme ends in each arrangement?

Options
1) 48
2) 720
3) 36
4) 360

Read Solution (Total 2)

4 digits out of 6 remain 4!=24
extreme point 2!=2
total 2*24=48
8 years agoHelpfull: Yes(7) No(0)

4!*2! = 24 * 2 = 48
8 years agoHelpfull: Yes(2) No(0)

CTS Other Question

If the marked price of 30 articles is equal to selling price of 40 articles, then find the % discount?
(a)25%
(b)33.33%
(c)75%
(d) 20%
(e)None of these
A, B and C can do a piece of work in 20, 30 and 100 days respectively. If A worked alone on the first day, B worked alone on the second day, C worked alone on the third day, A worked alone on the fourth day, and so on, then in how many days the work got completed?
1) 29 days
2) 28 days
3) 31 1/2 days
4) Can't be determined