For the following questions answer them individually
Initial value of a car is Rs. 150000. The value of car depreciated by 20 percent of its initial value each year. What will be its value after 2 years?
A can do a piece of work in 55 days. He works for 20 days and then B alone finishes the remaining work in 49 days. How many days will both take together to complete the work?
A is 40 percent less efficient than B. If B can make a helmet in 16 days, then in how man days can A make the same helmet?
In a class, 38 percent are boys and the number of girls are 31. What is the number of boys in the class?
In a mixture of 220 litre the ratio of water and milk is 6 : 5 respectively. How much water must be added to make the ratio of water and milk as 5 : 4 respectively?
The length of the side of a cube is 13 cm. What is the lateral surface area of the cube?
A man spends 58% of his income. His income increases by 30% and his expenditure also increases by 25%. Find the percentage of increase in his savings.
The marked price is 28% higher than the cost price. A discount of 15% is given on me marked price. What is the gain or loss percentage?
Two trains are running in opposite direction with the same speed. If the length of each train is 160 metres and they cross each other in 32 seconds, then what is the speed of each train?