A train met with an accident 100 km from station P. It completes the remaining journey at 2/3 of the previous speed and reached 42 min late at station Q. If the accident had taken place 40 km further, it would have been only 22 min late. Then, what is the original speed of the train?

The sum of two digit number is 16. If the digit is interchanged the number is formed 18 less than the original number. Find the original number.

Direction: Study the following table carefully to answer these questions.

What is the average number of students appeared from all the schools in 2007?

The base of a right prism is a tringle with sides 20 cm, 21 cm and 29 cm. If its volume is 7560 cm³, then its lateral surface area ( in cm²) is:

The numerator of a fraction is 4 less than its denominator. If the numerator is decreased by 2 and the denominator is increased by 1, the denominator becomes eight times the numerator. Find the fraction? 

The average weight of 5 persons sitting in a boat is 38 kg. The average weight of the boat and the persons sitting in the boat is 52 kg. What is the weight of the boat?

The marked price of a watch was ₹ 720. A man bought the same for   ₹  550.80 after getting two successive discounts. the first being 10 %. then the second discount rate is 

What will be the compound interest of 3 years at the rate of 5 % of 1000 rupees?