For the following questions answer them individually
The average marks of 17 students was 180. But later it was found that the score of one student was wrongly entered as 72 instead of 27. what is the correct average of their score?
The difference between compound interest (compounding annually) and simple interest on a sum of Rs. 10,00.000 for 2 years is Rs. 2401. Find the rate of interest per annum.
Parallel sides of a trapezium are 15 cm and 16 cm and its area is 961 $$cm^{2}$$. What is the distance between parallel sides?
Many starts from a place A and reaches the place B in 29 hours. He travels 219 distance at the speed of 9 km/hr and the remaining distance at the speed of 12 km/hr. What is the distance between A and B?
A shirt is marked at ₹1200, and a discount of 15% is offered. Find the selling price of this shirt.
On Selling a watch at 3/10 of the marked price there is a loss of 16 percent. What will be the ratio of the marked price and cost price of the watch?
By selling a cup for Rs. 1792 a man earns a profit of 12 percent. If he sells it for Rs. 1472, then what will
be the loss percent?