n dice are thrown and the total number of possible outcomes in which at least one die shows 1 is 671, then n= (A) 3 (B) 4 (C) 5 (D) none of these

Three dice are rolled. Find the number of possible outcomes in which at least one dice shows 5.

Four dice are rolled. The number of possible outcomes in which atleast one die show 6 is

If n dice are rolled, then number of possible outcomes is:

When a dice is thrown, the total number of possible outcomes is (a) 6 (b) 1 (c) 3 (d) 4

Write the total number of possible outcomes in a throw of 3 dice in which at least one of the dice shows an even number.

If the number of ways in which n different things can be distributed books each having 5 copies takig at least 2 copies of each books is 256, then n= (A) 3 (B) 4 (C) 5 (D) none of these

If ^(n+1)C_3=2.^nC_2, then n= (A) 3 (B) 4 (C) 5 (D) 6

Four die are rolled. The number of ways in which atleast one die shows 3 , is (a) 625 (b) 671 (c) 1256 (d) 1296

If n is a whole number such that n+n=n ,\ t h e n\ n=? (a) 1 (b) 2 (c) 3 (d) none of these

If n(B)=2 and the number of functions from A and B which are onto is 30, then number of elements in A is (A) 4 (B) 5 (C) 6 (D) none of these