Percentage, ratio-proportion, profit-loss and interest.
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Q1 · Arithmetic · MEDIUM
A shopkeeper marks an article 20% above its cost price and then allows a discount of 10%. If he still makes a profit of Rs. 80 on the article, what is the cost price of the article?
Q2 · Arithmetic · EASY
The ratio of boys to girls in a class is 3:2. If there are 15 boys in the class, how many total students are there?
Q3 · Arithmetic · EASY
A sum of Rs. 8000 is invested at 10% simple interest per annum. What will be the total amount after 3 years?
Q4 · Arithmetic · MEDIUM
In a school, 40% of students are girls. If the number of boys is 360, what is the total number of students in the school?
Q5 · Arithmetic · HARD
A trader buys goods worth Rs. 5000. He sells 60% of them at a profit of 20% and the remaining at a loss of 10%. What is his overall profit or loss percentage?