3 There are Hyree barrels filled with a mixth 3) of too different acidi given. The ratio of Acidy the first barret îs 2:1, in 1he cecond 3:2 and pon the third 5:3.If he Con tent of au barrels is Mixed toge ther pu ose targe baYrel, Iat obtaine Mixture woald have the ratio of Acidy 19:11 aud Hhe volume of is Littesd. What is the volum of eacee small barrel if the volume of The second Sarrel is 2.5 times grealer than the vorume of The 9 third barrel ?
Permutations and Combinations
If there are 5 dishes, they can be relished in any order at a time. In permutation, it should be in a particular order. In combination, the order does not matter. Take 3 letters a, b, and c. The possible ways of pairing any two letters are ab, bc, ac, ba, cb and ca. It is in a particular order. So, this can be called the permutation of a, b, and c. But if the order does not matter then ab is the same as ba. Similarly, bc is the same as cb and ac is the same as ca. Here the list has ab, bc, and ac alone. This can be called the combination of a, b, and c.
Counting Theory
The fundamental counting principle is a rule that is used to count the total number of possible outcomes in a given situation.
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