how many five digit numbers can be formed using the digits 0, 1,2,3,4,5 which are divisible by 3, without repeating the digits?
i have solved it like this..
5*5*4*3*2
plz. check again.
four dices are rolled simultaneously. what is the number of possible outcomes in which at least one of the die show 6???
plz. explain it properly
Q2. A trader has two kinds of wheat grains - one that he purchased for $20 per sack, and the other that he purchased for $12.5 per sack. How many sacks of the cheaper wheat should he mix in 50 sacks of the expensive wheat, so that the mixture yields a 33.33% profit when sold at $20 per sack?
(a) 20
(b) 25
© 50
(d) 100
(e) 200