Mathematics — Old Questions (TPSC)
Q11. A shopkeeper make the price of his goods at 20% higher than the original price. After that, he allows discount of 10% on market price. What will be his profit or loss percentage?
Q12. P can do a piece of work in 10 days and Q can do the same work in 20 days, with the help of R they can finish the work in 5 days. How many days will it take for R alone to finish the work?
Q13. A train, moving with uniform velocity, crosses a pole in 15 second, while it crosses 100 metre long platform in 25 seconds. The length of the train is:
Q14. The sum of two numbers is 14 and their difference is 10. Find the product of the two numbers.
Q15. A person covers half of his journey at 15 km/hr and remaining half covers 10 km/hr. What is his average speed for the whole journey?
Q16. If 4/5 of an estate be worth Rs. 16800, then what is the value of 3/7 of the estate?
Q17. A student has to secure 40% marks in a paper to pass. He gets 40 and fails by 40 marks. Find the maximum marks of the paper.
Q18. In an examination, a student was asked for to find 3/14 of a certain number. By mistake, he found 3/4 of it. His answer was 150 more than the correct answer. The given number is:
Q19. A, B, and C working together can finish a piece of work in 8 days. A alone can do it in 20 days and B alone can do it in 24 days. In how many days will C alone can do the same work?
Q20. The average of 10 numbers is calculated as 25. It is discovered later on that while calculating the average, one number, namely 36 was wrongly read as 56. The correct average is: