A) There are 100 students in Language school. They study one or several languages. We know: 48 – study English 26 – study French 28 – study German 8 – study English and German 8 – study English and French 13 – study French and German 24 –study neither French nor German nor English Draw a Venn Diagram to illustrate sets of students studying languages. How many students study 3 languages at the same time: French, German and English?
Unitary Method
The word “unitary” comes from the word “unit”, which means a single and complete entity. In this method, we find the value of a unit product from the given number of products, and then we solve for the other number of products.
Speed, Time, and Distance
Imagine you and 3 of your friends are planning to go to the playground at 6 in the evening. Your house is one mile away from the playground and one of your friends named Jim must start at 5 pm to reach the playground by walk. The other two friends are 3 miles away.
Profit and Loss
The amount earned or lost on the sale of one or more items is referred to as the profit or loss on that item.
Units and Measurements
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A) There are 100 students in Language school. They study one or several languages. We know:
48 – study English
26 – study French
28 – study German
8 – study English and German
8 – study English and French
13 – study French and German
24 –study neither French nor German nor English
Draw a Venn Diagram to illustrate sets of students studying languages.
How many students study 3 languages at the same time: French, German and English?
B)
25 athletes are participating in jumping competition. They are of different nationality:
8 from Argentina
6 from Brasil
5 from Paraguay
6 from Uruguay
To determine an order in which athletes participate, lot is drawn. Find out the probability that last athlete to participate is from Argentina.
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