For the following questions answer them individually
A alone can do a work in 40 days and B alone can do the same work in 60 days. In how many days will they together complete the same work?
In an exam, Sandeep got 55 percent less marks than the passing marks. He got 223.2 marks. If the passing percentage is 62 percent, then what are the maximum marks of the exam?
If the cost of 5 apples and 8 mangoes is same as the cost of 9 apples and 4 mangoes, then what is the ratio of the price of a mango and the price of an apple?
Two trains are moving in the same direction at the speed of 40 km/hr.and 90 km/hr, their lengths are 275 metres and 350 metre respectively. What will be the time taken by faster train to cross the slower train?
Rs. 20000 is lent at compound interest at an annual rate of 18 percent for 1 year (compounding annually). If the compounding of interest is done half yearly, the how much more interest will be obtained?
What is the total surface area of a cylinder having radius of base as 4.2 cm and height as 8 cm?
What is the value of $$143 \times 13 \div 11 + 156 \div 13 \times 12 - 210 \times 15 \div 14$$?
Ritu sold a camera for ₹24000, earning a profit of 20%. If she wanted to earn a profit of 25%. at what price should she have sold the camera?
Dinesh purchases 12 dozens of apples at the rate of Rs. 300 per dozen. He sells each apple at the rate of Rs. 30. What is the profit of Dinesh?