The following pie-chart shows details of the per month expenditure of a family. Study the pie-chart carefully and answer the question that follows.

The expenditure on rent, medicines and electricity together is what percentage of the expenditure on groceries and education together?
Show answer & explanation
Correct answer: A
Explanation
The correct answer is option 1 i.e. 82.22%.
Let the monthly income be 1000.
rent = 15% of 1000 = 150
Groceries = 20% of 1000 = 200
Education = 25% of 1000 = 250
Medicines = 12% of 1000 = 120
Electricity = 10% of 1000 = 100
Savings = 18% of 1000 = 180
To find the percentage, we can set up the following equation:
Percentage = (Part / Whole) × 100%
In this case:
Part = 370
Whole = 450
So, the equation becomes:
Percentage = (370 / 450) × 100% ≈ 0.8222 × 100% ≈ 82.22%
Therefore, 370 is approximately 82.22% of 450.