Due to 50% reduction in price of onion, Hiruni can now buy 2 kg more onion without changing her total expenditure on onion. If she spends Rs60 on onion, find the original price of onion.
Some workers are painting a hall with length, breadth and height of 50 m, 35 m and 6 m respectively. If they can paint 10 m2 area from one liter of paint, find the amount of paint required to paint the walls and ceiling of hall.
Tharushi can complete some work in 24 days, while Hansi can complete the same work in 12 days. They started the work together, and when the work was half complete, Hansi fell ill and Tharushi had to finish the remaining work. How long did it take to complete the work?
The graph below shows the temperature (in degrees Celsius) over 10 weeks in Kandy. Calculate the maximum range of variation (the difference between highest and lowest temperature).
If dog can walk from point A to point B in 20 minutes, while cat can walk from point B to point A in 5 minutes. If both start walking at same time, after what time will they cross each other?
The letters of the word PROBABILITY are rearranged in a random order. What is the probability that the letters P and L have exactly 4 letters between them?
6 teams compete in a track competition. If there are 23 events in the competition, no event ends in a tie, and no team wins more than 4 events, what is the minimum possible number of teams that won at least one event?
Sri Lanka
