How did conflict in serbia between austria-hungary and russia ignite world war 1?

In the times following the Austrian collapse in connections with Serbia, the rest of Europe, including Russia’s associates, Britain and France, seemed on with alarm, apprehending the expected disruption of a Balkans dispute that, if penetrated into by Russia, frightened to split into a general European war. The British Foreign Office requested its equivalents in Berlin, Paris, and Rome with the plan of a global organization directed at reducing the dispute; the German administration, though, was set against this idea and suggested Vienna go forward with its ideas.

part a. there were 250 teenagers surveyed (100% of tenagers = 250)therefore 1 % = 250/100 = 2.5 76% = 1% x 76 = 2.5 x 76 = 190 teenagers of the 250 surveyed liked burgerspart b: jane surveyed 25% (which is equal to 50 teenagers, i.e. a quarter of the teenagers surveyed is 50) to get 100% we simply get 4 quarters, i.e. multiply 50 by 4 = 200 teenagers were surveyed by jane. part c: it is impossible to give an example where a percentage is greater than 100%, since, by definition , percentage means "per 100".