TCS Company Numerical Ability Permutation and Combination

q.1 in how many ways can 3 postcards can be posted in 5 postboxes?
q.2.in how many ways can 5 postboxes hold 3 post cards?

Read Solution (Total 12)

TCS Other Question

A number has exactly 3 prime factors, 125 factors of this number are perfect squares and 27 factors of this number are perfect cubes. overall how many factors does the number have??? Next number in the given series 1, 7, 8, 49, 50, 56, 57, 343