Application-based arithmetic problems.
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Q1 · Unitary Method, Average, Profit-Loss, Simple Interest · EASY
A shopkeeper bought 40 kg of rice at Rs 25 per kg. He sold the entire quantity at Rs 30 per kg. What is his total profit?
Q2 · Unitary Method, Average, Profit-Loss, Simple Interest · MEDIUM
The average age of 5 students is 12 years. If one more student of age 15 years joins the group, what will be the new average age of the group?
Q3 · Unitary Method, Average, Profit-Loss, Simple Interest · HARD
A sum of Rs 8000 is invested at 5% per annum simple interest for 3 years. At the same time, another sum of Rs 6000 is invested at 6% per annum simple interest for 2 years. What is the total interest earned from both investments?
Q4 · Unitary Method, Average, Profit-Loss, Simple Interest · MEDIUM
If 15 workers can complete a task in 12 days, how many days will 9 workers take to complete the same task?