12 men or 30 boys can complete a work in 72 days. How many days will 48 men and 24 boys will take to complete the same work?
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If 4x = 10247, then what is the value of x?
A shopkeeper offers the following 3 schemes. Which scheme has the maximum discount percentage?
I. Two successive discounts of 30% and 20%
II. Buy 4 get 7
III. Buy 4 get 3 free
The ratio of the cost price and selling price of an article is 5 : 3. What is the loss percentage?
A sum of money invested at simple interest becomes 13/10 of itself in 2 years and 6 months. What is the rate (in percentage) of interest per annum?
What is the average of 90, 250, 240, 204, and 616?
If P : Q : R = 6 : 7 : 8 and R : S = 3 : 5, then what is P : S?
X and Y give an exam. Difference of their marks is 45 and the difference of their marks is 15% of the maximum marks. What is the maximum marks for the exam?