If in a 10,000 seat stadium the tickets for all but 100 seats were sold at half price and the remaining tickets were sold at the full price of ₹20. The total revenue from the ticket sales, in ₹ was
2. A man spends 7of his money and after spending 75% of the remaining he had Rs.370 left. How much money did he have?
- Rs. 1600
- Rs. 1400
- Rs. 1200
- Rs. 1500
3. The red blood cells in a blood sample grow by 10% per hour in first two hours, decreases by 10% in next one hour, remains constant in the nest one hour and again increases by 5% per hour in next two hours> if the original count of the red blood cells in the sample is 40,000, find the approximate red blood cell count at the end of six hours.
4. A set A consists of integers 27, 28, 30, 32, and 33. If the integer k is included in the average of set A will increase by 30%. What is the value of integer K?
5. Ravi is 12 years younger than Surya. If Ravi’s age is 40% of the sum of his and Surya’s age. What will be Surya’s age 9 years hence?