Consider the sales of a company in the year 2019,2020,2021 and 2022 in the given pie chart.
The difference in angles at the centre by sales in 2022 and 2019 is_________ degrees.
A can complete a piece of work in 20 days. B can complete the same work in 36 days. If A and B work together, then the number of days required to complete the work is ?
If the price of a product is decreased by 50%, then increased by 50% and then again increased by 50%, What is the net increase percentage in the price?
The marks cored by a student are directly proportional to the time invested in studies. If the student gets 60 marks when he studies 4 hours a day, then how many hours he should use in his studies daily to get 75 marks?