*Solve by venn diagram In a village out of 200 people it was found that 55 people are infected from Malaria, 72 people are infected from Dengue and 80 people are infected from Typhoid. 20 people are infected from Malaria and Typhoid, 30 people are infected from Malaria and Dengue, 35 people are infected from Dengue and Typhoid and 11 are infected from all of these. Find the number of people a) Who are infected from at least one of the three disease? b) Who are infected from exactly one of disease? c) Who are not infected from any disease?
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
Measurements and comparisons are the foundation of science and engineering. We, therefore, need rules that tell us how things are measured and compared. For these measurements and comparisons, we perform certain experiments, and we will need the experiments to set up the devices.
*Solve by venn diagram
In a village out of 200 people it was found that 55 people are infected from Malaria, 72 people are infected from Dengue and 80 people are infected from Typhoid. 20 people are infected from Malaria and Typhoid, 30 people are infected from Malaria and Dengue, 35 people are infected from Dengue and Typhoid and 11 are infected from all of these.
Find the number of people
a) Who are infected from at least one of the three disease?
b) Who are infected from exactly one of disease?
c) Who are not infected from any disease?
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