Question

what is alligations why ? it easy or difficult to do ?

Answer 1

a claim or assertion that someone has done something illegal or wrong, typically one made without proof.

Answer 2

There are two types of alligation: alligation medial, used to find the quantity of a mixture given the quantities of its ingredients, and alligation alternate, used to find the amount of each ingredient needed to make a mixture of a given quantity. Alligation medial is merely a matter of finding a weighted mean.